Period tracking app, Flo, found to be selling user data to Meta

(femtechdesigndesk.substack.com)

265 points | by campuscodi 7 hours ago ago

160 comments

  • moffers 6 hours ago ago

    I don’t have the right configuration of equipment to use an app like this, but does anyone know why this needs to be a service-driven app? What piece of functionality requires a server to track your health?

    • jumpconc 5 hours ago ago

      The spying part requires a server.

      If you use GrapheneOS, you can enable or disable internet access for each app.

      • embedding-shape 5 hours ago ago

        > If you use GrapheneOS, you can enable or disable internet access for each app.

        Not sure what information you're expecting the app in question to surface if you disable internet access for it.

        • antiframe 3 hours ago ago

          An error? It's useful to know if/when an app wants to access the Internet. So if an app says it's local only you can disable network permissions. Trust but verify.

        • bonoboTP 3 hours ago ago

          Locally stored info

    • thephyber 5 hours ago ago

      Better revenue model? Pushing some data to the server, serving ads to the app, reselling demographic data, etc all allow for more revenue than just the price of installation.

      There are almost certainly other apps in the space that don’t need a server, don’t phone home to Meta, and are lower priced, but they probably aren’t as good at marketing.

      From my experience in the startup world, I would wager that this developer probably wanted to track marketing campaign installs (Meta library is required to close the loop on Facebook/Instagram ad conversions after app install) or wanted a feature from some Meta library they integrated but didn’t realize or care about the consequences.

    • toast0 5 hours ago ago

      I'm not familiar with this app, but a service lets you do potentially nice things like cross device sync and sharing observations with trusted others.

      • 3form 5 hours ago ago

        I'm assuming the question should be further refined to "why does the service need to know the data". The things that you mention could be done with the service only having the encrypted blob.

        • array_key_first 2 hours ago ago

          Encryption is more work than not-encryption, and most software is optimally lazy and barely functional. The main goal of the developers is to make the app almost work most of the time, and not crash too much or be so inconvenient that users delete it. Anything past that is extra, and businesses don't pay for extra.

    • embedding-shape 5 hours ago ago

      My partner uses the app this article is about (Flo) and I have an account there too in order for her to share the data with me.

      I guess you could do it with some sort of P2P sync with cryptography involved locally instead, and/or E2E for stuff sent via the servers. Kind of surprised me they didn't have E2E already, but I guess I shouldn't be surprised anymore.

      • phoronixrly 40 minutes ago ago

        Well... They share their data with you and a bunch of adtech companies...

      • JohnFen 5 hours ago ago

        Or, you know, she could just track it without any app at all and share it with you in person.

        • dwedge 3 hours ago ago

          You could also be snarky without internet access

        • coldpie 3 hours ago ago

          Computers are useful tools that do useful things for people. It is reasonable for people to want to use them to do things they find useful. They don't have to function like spy devices, but we've chosen to highly reward the people who have turned them into spy devices, so they do. We could choose to do something else with them instead. For example we could pass & enforce privacy regulations so they cannot function as spy devices. Or we could wheel out the guillotines so there are appropriate consequences for the creeps and sociopaths who choose to build and work at places like Facebook. Whichever, I'm flexible.

    • newtwentysix 4 hours ago ago

      Like notes apps, reminder apps, etc, data from almost everything we do on phone is saved in cloud. That data is their business fundamental. Same with this app also.

    • alistairSH 5 hours ago ago

      Not being a women, I've always wondered what insight the app gives regardless of data traveling to a server... does it do anything you can't do with a simple notebook app (like Apple's default Notes)?

      If you have an irregular period, does this app help "guess" when it's going to start/end?

      If you have a regular period, why do you need an app at all?

      • natbennett 4 hours ago ago

        Like most data entry software there’s nothing that unstructured notes (or paper) can’t handle.

        The main useful feature of the apps (or Apple Health’s tracker which is entirely adequate) is that it sends reminders on the estimated period start date, and then a few days afterwards if you haven’t recorded the end date.

        Even “regular” periods often aren’t perfectly regular, or can become irregular when they were regular. (Which is often very important health information.)

        It also automatically calculates median period length and typical variation/range.

        All unnecessary for some people but very useful for others.

        • eszed 3 hours ago ago

          > median period length and typical variation/range.

          This was what my partner found useful to share with her doctor while trying to figure out a medical issue. Of course it could have been done typing dates and notes into excel, and manually creating charts, but the chance that she (or most people) would consistently follow that workflow (pun not intended, but I like it) is nil.

    • blitzar an hour ago ago

      The blockchain should have solved this.

    • CGamesPlay 3 hours ago ago

      It doesn’t? You could easily install the tracker on the client app, no need to do it server side. In fact I bet the app in question (Flo) was doing the upload to Meta client-side.

      • embedding-shape 3 hours ago ago

        > It doesn’t?

        I'm guessing P2P technology isn't really sufficiently easy for developers yet, so when you have two users using an app that are supposed to share something between the two, most of us default to building server-side services. That + the "dynamic" list of articles and "help" Flo offer I'm guessing is the main reason for them having servers in the first place.

    • ozlikethewizard 5 hours ago ago

      I have actually been playing around with scoping a privacy first version of these tracking apps that store all the data locally with optional sync. It's technically possible, but there's very little in the way of revenue generation there. So it's same issue as always, capitalism corrupts.

  • culi 2 hours ago ago

    [drip.](https://bloodyhealth.gitlab.io/) [source](https://gitlab.com/bloodyhealth/drip)

      - around since 2019. Last update 2 months ago
      - iOS, Android
      - React Native
    
    Mensinator [source](https://github.com/EmmaTellblom/Mensinator)

      - around since 2024. Last update 2 weeks ago
      - Android
      - Kotlin
    
    [Menstrudel](https://menstrudel.app/) [source](https://github.com/J-shw/Menstrudel)

      - around since 2015. Last updated 3 weeks ago.
      - iOS and Android
      - Dart
    
    [Tyd](https://unobserved.io/tyd/) [source](https://github.com/unobserved-io/tyd)

      - around since 2023. Last updated 2 years ago.
      - iOS
      - Swift
    
    EDIT: Someone else pointed out this closed-source alternative that got a 92% by ORCHA: https://www.my28x.com/

    I think the biggest thing I'd like to see is a data format standard defined. You should be able to "take your data with you" and go anywhere you like. If you decide an app is unethical or if your favorite OSS app stops being updated, it should be simple to switch. Many apps let you export your data. Maybe someone can make a converter between popular proprietary apps and a common data structure spec

  • freediddy an hour ago ago

    Meta only cares about ad revenue so could they be researching or have discovered a link between buying trends and links to a woman's cycle?

    • OJFord an hour ago ago

      Are you joking? There's loads of trivial links. Most obviously: it's stopped (pregnancy, menopause) and therefore so too will stop purchases of certain 'female hygiene products'.

  • deferredgrant 25 minutes ago ago

    This is one more reason sector-specific privacy expectations probably need to be harder-coded. Hoping every consumer app will independently exercise restraint has not gone especially well.

  • gowld 37 minutes ago ago

    This article is about a lawsuit filed in 2021.

    https://www.labaton.com/cases/frasco-v-flo-health-inc

  • childofhedgehog 6 hours ago ago

    Why would anyone think that a non-HIPPA compliant app would keep medical information private to the level of security needed for medical data? Flo has definitely breached user trust, but that trust seems misplaced from the get-go.

    • gizmo686 6 hours ago ago

      People are used to living in highly regulated markets. When they go to a grocery store to buy lettuce, people don't stop to ask "what regulatory regime is this lettuce being sold under?". They just trust that food being sold in a food store will meet our societal standards for food. I can go to Amazon and order a raw steak for delivery, and still trust it will meet standards.

      The situation with wellness apps is that they are a product that are designed specifically to exist outside of the regulatory regime that people associate with them.

    • john_strinlai 6 hours ago ago

      >Why would anyone think that a non-HIPPA compliant app would keep medical information private to the level of security needed for medical data?

      because lots of people dont know what HIPPA is, and (naively to us more familiar with tech) assume that a medical-related app on a curated app store would be safe for medical-related stuff.

      • ceejayoz 6 hours ago ago

        > lots of people dont know what HIPPA is

        Ironically, it's HIPAA.

        You're right, though; it's much more limited than people think. During COVID people claimed everything violated HIPAA (masks, vaccine requirements, testing), but it only applies in a very narrow subset of patient/provider relationships.

        • FireBeyond an hour ago ago

          Very much so. Also ironically, as a healthcare provider (paramedic), HIPAA expressly allows me to get your healthcare information without your consent (as needed for your care). A lot of facilities have you sign paperwork to explicitly authorize sharing, but that's really just a CYA.

          "Does the HIPAA Privacy Rule permit doctors, nurses, and other health care providers to share patient health information for treatment purposes without the patient’s authorization? Answer: Yes. The Privacy Rule allows those doctors, nurses, hospitals, laboratory technicians, and other health care providers that are covered entities to use or disclose protected health information, such as X-rays, laboratory and pathology reports, diagnoses, and other medical information for treatment purposes without the patient’s authorization."

          Source: https://www.hhs.gov/hipaa/for-professionals/faq/481/does-hip...

          • haldujai 11 minutes ago ago

            The bigger gap is for healthcare and business operations which is very broad and includes datasets for AI training as one example.

          • ceejayoz 29 minutes ago ago

            That seems entirely unironic and reasonable, though?

            • FireBeyond 6 minutes ago ago

              100% reasonable (and often necessary - pill shopping, psychiatric concerns, etc. And not irony in the Act itself, more people's perception of its intent.

    • xbar 3 hours ago ago

      "Because Apple and Google said my data was safe, so it must be safe in the apps. What's hippa?," said more than 50% of the population.

    • elAhmo 6 hours ago ago

      People just wanna track stuff, they don't really look into is something HIPPA compliant or read the ToS. App store push, recommendation, word of mouth are what makes the app like this spread, not really details HIPPA compliance.

  • mghackerlady 4 hours ago ago

    I don't have a period, so I'm not the best person to do it, but there really needs to be a solid FOSS alternative to flo. If GNU had more women, it'd probably already exist

    • culi 2 hours ago ago

      I did a quick review of what FOSS options are currently out there

      https://news.ycombinator.com/item?id=47936103

      • phoronixrly 39 minutes ago ago

        There are a plethora of open-source implementations available on F-Droid. They need to be looked at for privacy before choosing one, but there are completely offline ones.

    • TFNA 4 hours ago ago

      A comparable FOSS app called Drip has been on F-Droid since forever.

      • xzjis 3 hours ago ago

        Drip has a paradoxical flaw: by trying to be extremely inclusive and making a "gender-neutral" app (without the colour pink) to include trans people, it discourages some people from using it. At least, my friend told me she thought the design was ugly and was looking for a "cute" app, so she ended up using Flo instead of Drip despite my many warnings.

        I think FLOSS apps often forget that not everyone is a developer or a nerd who prioritizes privacy and ethics over design, which is a real problem since people end up using proprietary apps that data-mine them.

        • embedding-shape 3 hours ago ago

          That sounds not so much as a flaw, as a conscious product decision. And to be honest, doesn't sound like a bad one, not every app needs to work or look the same way, as long as people have choices, they can be responsible for the choices they make. If someone wants a safer but boring app or if someone wants a cute "who gives a fuck about privacy" app, both should be fine.

          • voakbasda 3 hours ago ago

            The government does NOT let people have choices in many cases. People should NOT be forced to choose between medical privacy and potential prosecution.

            That your comment even implied that would be acceptable in this context is appalling.

            • embedding-shape 3 hours ago ago

              I don't know where you got "the government" from, all I'm saying is that apps should be allowed to have cute designs or boring designs, based on their own judgement, and that people should be allowed to freely choose between those. No one should be FORCED to chose anything, I agree, and I didn't imply anything like that.

        • Hendrikto 3 hours ago ago

          Regardless of your opinion on gender and identity politics, surely people can agree that only biological women have periods.

          • freirin 2 hours ago ago

            Not quite! While trans women obviously don't have menstrual cycles a good chunk of the population suffer from period-like symptoms/PMS just due to similar hormonal fluctuations.

          • mghackerlady 3 hours ago ago

            Of course, but treating transgender men like you would a cisgender woman with all the same gendered expectations is both incredibly disrespectful if done on purpose and humiliating for someone who very much does not want to be treated as a woman despite having a period that most likely already makes them very uncomfortable and dysphoric

            > only biological women have periods

            generally, yes, but there are so many edge cases there with intersex people that it is far easier and more inclusive to just say roughly 50 percent of the human population has periods and avoid having to deal with the million asterisks that come with that statement

            • AnnikaL an hour ago ago

              50% of the human population will at some point in their life have periods, perhaps; but presumably (due to childhood and menopause) less than 50% of the human population has recently experienced a period.

            • vorpalhex an hour ago ago

              Language is consumed by people, not machines.

              You don't have to speak like a lawyer.

              There is no intersex person waiting to jump out and yell accusatory things at you because you didn't include sufficient asterisks or you said statements that are 99.9999% true.

        • mghackerlady 3 hours ago ago

          I think this could easily be fixed by allowing themes of some kind

    • gabeyaw 4 hours ago ago

      https://www.my28x.com/ I recently heard a talk from this founder. It's free and local, but don't think it's OSS. They have a high ORCHA rating, but waiting to see if they keep their business model this way

      • embedding-shape 3 hours ago ago

        How does the sharing between partners happen with 28x, or is it literally local-only as in "solely for one person and no way to share with partner"?

    • xorvoid 4 hours ago ago

      I don't know how many more examples people need to see of big tech not respecting privacy... it's just becoming a farce now. Big tech tracking woman's cycles? Of course they are. (sigh) If this doesn't gross people out enough to seriously pursue alternatives, I literally don't know what will.

  • arkwin 5 hours ago ago

    Now is a good time to bring up.

    https://bloodyhealth.gitlab.io

    A secure open source period tracking app.

    • DauntingPear7 an hour ago ago

      A nontrivial issue is how the app looks, unfortunately

  • 2OEH8eoCRo0 6 hours ago ago

    It's really sad that we have all this technology but we can't trust any of it.

    • jumpconc 5 hours ago ago

      I'll make a period tracker for you for 5 bucks a month. You won't buy it, because it costs 5 bucks a month. So I'll have to find alternative monetisation strategies.

      • deltoidmaximus 5 hours ago ago

        Why would me giving you 5 bucks a month assure you didn't also sell all of the data from the period tracker app? That's money you'd just be leaving on the table.

      • nemomarx 5 hours ago ago
      • postalrat 5 hours ago ago

        Nobody is going to trust your $5 a month service.

      • mghackerlady 4 hours ago ago

        why does it have to be 5 bucks a month and not a one time purchase?

      • GuinansEyebrows 2 hours ago ago

        there is a third option: don't make one at all if you feel your only recompense involves selling this data. that's what creeps do.

    • Schiendelman 5 hours ago ago

      I think that kind of thinking is similar to the "both sides" stuff in politics. There's a meaningful difference in trustworthiness between different options.

      For instance, if you need to track your period, the built in iOS apps are secure, especially if you're using advanced icloud encryption.

      • JohnFen 4 hours ago ago

        The trouble is that it's literally impossible to tell what applications are trustworthy and what applications are not, or whether they'll remain trustworthy over time. So you have to treat them all as untrustworthy. It's a fair rule of thumb because the majority of them can't be trusted.

  • DauntingPear7 2 hours ago ago

    I will say, with codex/cc access and a free weekend you could make an app that covers like 99% of this app’s purpose. The harder part would be the art/making it cutesy, as some other commenters have pointed out. Plain SwiftUI or compose just isn’t eye catching enough

  • philipallstar 6 hours ago ago

    > It seems like we can’t just necessarily leave it up to companies – or their ragtag teams of crackpot lawyers rewriting privacy policies every few months – to keep our private data private.

    It's not a medical requirement from a doctor, so just keep a diary if you want to. Not everything needs to be an app. All the money spent on regulations and regulators to cover increasingly niche opt-in services that are entirely unnecessary is a waste.

    • ksenzee 5 hours ago ago

      I've never used Flo specifically, so I don't know what kind of data analysis it has available, but period data is the #1 most useful health data to have an app crunch for you, and "your period starts tomorrow" is a pretty darn useful notification to get.

      • JohnFen 5 hours ago ago

        Most of the women I know well enough to know this about them track and predict the onset of their next period without needing an application. It isn't exactly rocket science.

        • newtwentysix 4 hours ago ago

          Well, until some years ago we remembered dozens of phone numbers, birthdays, routes, physical addresses, due dates, etc.

          The trick is to "give a tool for 1-2 generations of customers" , and then they'll be fully dependent on the tool.

          • dylan604 3 hours ago ago

            1-2 generations? give an advanced anything to anyone with no true knowledge of how to do it without the tool and you'll have people fully dependent in hours.

            kids today cannot navigate without turn-by-turn. nobody looks at the map to get names of major streets, they just blindly follow the directions. I learned how to navigate as a kid just by being bored and staring out the window and being able to recognize things. Now, kids don't even look out the window as they keep their heads down and eyes glued to a screen.

        • ksenzee an hour ago ago

          This is a strawman argument. Nobody is arguing that period apps are a necessity. Women have been tracking our periods without computers since prehistoric times. Women were doing rocket science calculations before computers, for that matter. Of course we can do without period apps. But they're more useful than any other health tracking device or app that I can think of.

      • embedding-shape 5 hours ago ago

        We're using Flo specifically, mostly for sharing stuff like "her period starts tomorrow" to the both of us, she doesn't really need a notification for that :)

        • ksenzee an hour ago ago

          I'm not sure I understand your argument. It's important enough that she has it set up to share that data to both of you, but it's so unimportant she doesn't need a notification for it?

          • embedding-shape 5 minutes ago ago

            Yes, it is useful for me as a partner to know, ideally without having to ask her, and not important for her to be notified, since without the notification she'll notice it anyways sooner or later...

    • justonceokay 5 hours ago ago

      Even if it was a requirement, doctors do not generally have legal authority to compel action. Hell, the average doctor would probably agree that the average patient hardly ever does what they’re told…

    • johnny22 6 hours ago ago

      privacy legislation would just solve the problem by itself though.

      • Zak 6 hours ago ago

        Privacy legislation by itself does not solve the problem; what Flo did was already illegal. Effective enforcement is also necessary.

        • kortex 5 hours ago ago

          They need to make an example out of these companies. If your whole business model is built around handling sensitive data, and you are caught shipping off that data to brokers, you should be liquidated or at least fined to within an inch of bankruptcy, as basically all of your profits are a sham.

          • inetknght 5 hours ago ago

            Fined into bankruptcy and all managers up to and including the CEO criminally charged.

            • bombcar 5 hours ago ago

              There needs to be penalties that piece the "limited liability" because otherwise it's just "pay to get away with it" as we currently have.

              I've been for a "corporate death penalty" (if companies are people, they can be executed) which would result in the shareholders losing everything along with executives being perp-walked.

              • ndriscoll 5 hours ago ago

                Not just executives. They don't will these things into existence. Someone had to build functionality to send user data to Facebook.

      • ceejayoz 6 hours ago ago

        They've been thumbing their noses at EU privacy legislation and fines for quite some time already.

        • arijun 6 hours ago ago

          What does thumbing their noses mean? They have been paying while continuing their behavior, or not paying at all?

          The first seems like it could be resolved with an escalating fine schedule, and the second could be mitigated by requiring Apple/Google to remove it from the app store (one of the rare cases walled gardens are on consumers' side).

          • ceejayoz 6 hours ago ago

            > What does thumbing their noses mean? They have been paying while continuing their behavior, or not paying at all?

            Malicious compliance. For example: https://en.wikipedia.org/wiki/Epic_Games_v._Apple

            "While Apple implemented App Store policies to allow developers to link to alternative payment options, the policies still required the developer to provide a 27% revenue share back to Apple, and heavily restricted how they could be shown in apps. Epic filed complaints that these changes violated the ruling, and in April 2025 Rogers found for Epic that Apple had willfully violated her injunction, placing further restrictions on Apple including banning them from collecting revenue shares from non-Apple payment methods or imposing any restrictions on links to such alternative payment options. Though Apple is appealing this latest ruling, they approved the return of Fortnite with its third-party payment system to the App Store in May 2025."

            Or https://developer.apple.com/support/dma-and-apps-in-the-eu/

            "UPDATE: Previously, Apple announced plans to remove the Home Screen web apps capability in the EU as part of our efforts to comply with the DMA."

            (This one resulted in enough fuss they backed down.)

            • arijun 5 hours ago ago

              Ah you mean generally, not in this specific case.

      • ceejayoz 5 hours ago ago

        > privacy legislation would just solve the problem by itself though

        Just like banning drugs and murder did!

      • krystalgamer 6 hours ago ago

        "would just solve", lol.

    • SlinkyOnStairs 5 hours ago ago

      > All the money spent on regulations and regulators to cover increasingly niche opt-in services that are entirely unnecessary is a waste.

      That isn't what's happening. The regulations don't get little niche cases added to them, they're writen to be generally applicable to all niches.

      > It's not a medical requirement from a doctor, so just keep a diary if you want to.

      "Just don't use the computer if you don't want companies to rat you out to the fascist government that'll imprison or kill you for having a miscarriage" is a ridiculous victim-blaming position.

      It's the practical reality of a fascist government that they won't enact privacy laws. And yes, women really shouldn't be using period tracking apps in the US, or made by the US. But that doesn't mean privacy laws are some "silly waste of my tax money".

      It's not a "medical requirement" except for the many many many cases where it is. Similarly, this position extends to literally everything. Nothing "needs to be an app". But unless we want to pack up and discard the entire software industry, it really ought to be better about privacy like this.

    • sdoering 6 hours ago ago

      Why is it a waste? If you want to provide an app, one should follow the law and the regulations. It isn't the wild west (and even that had regulations).

      Also: Why blame the victims, not the perp?

      • kakacik 6 hours ago ago

        Nobody is blaming victims, please stop these wild fabulations. OP meant that you can't trust app owners especially long term, as you write its worse than wild west, literally nobody.gives.a.fuck. till they are dragged to the court, then they fight, dissolve company, still sell the data, start a new one and rinse and repeat. People are simply way more greedy than moral on average if there is any lesson in current times.

        Look at say zuckenberg - a typical sociopath lying again and again through his nose with big grin just to get what he wants (ie scandals how FB employees go to DB to spy on their exes or enemies is popping up for 10 years at least and there is no stop, every time there is another assurance how it can't be done now blablabla... and thats just specific meta employees).

        Nobody likes that, but just sitting and waiting for almighty regulators while blindly trusting apps in good faith to do their jobs is... not working much, is it. Be smart, adapt to real environment out there, not some wishful thinking. In parallel push for change as much as you can, vote with wallet and your time. Once sought-for paradise comes then feel free to use anything anyhow. At least that seems like smarter approach to me.

        • ndriscoll 6 hours ago ago

          > still sell the data

          So add liability for the buyers of the data or any services derived from the data (e.g. targeted ads). Make it so large advertisers demand audits showing privacy laws are being followed. Also have personal criminal liability for people building and maintaining systems that collect, store, or process data for illegal purposes. Executives, PMs, engineers, the whole lot. Put them in prison if they continue.

    • HumblyTossed 5 hours ago ago

      Forest for the trees, dude.

  • josefritzishere 2 hours ago ago

    That's incredibly creepy.

  • ronbenton 6 hours ago ago

    Hey surely Meta wouldn’t send that data to a government interested in regulating women’s reproductive rights

    • juggina 5 hours ago ago

      I'll bite. Why...?

      • forgotaccount3 5 hours ago ago

        People in power want the information to identify a narrower set of people who may have been pregnant and then did not have a child and so may have had an abortion.

        And facebook doesn't care about people's rights when those people in power are able to block Facebook from acquiring some new startup they want to buy, so facebook is willing to share the information.

        • Muromec 2 hours ago ago

          Do they actually want that or just want to be elected and say things that rhyme with your fears?

        • euroderf 4 hours ago ago

          Handmaids, assemble! Gilead is in your device.

        • joe_mamba 2 hours ago ago

          >People in power want the information to identify a narrower set of people who may have been pregnant and then did not have a child and so may have had an abortion.

          And what will people in power do with this information?

          • muwtyhg 40 minutes ago ago

            Are you not American? We have literal abortion bounty programs[1] in some states. There is definitely a desire to find women who have had abortions and punish them for it.

            [1] https://www.npr.org/2022/07/11/1107741175/texas-abortion-bou...

            • joe_mamba 4 minutes ago ago

              >Are you not American?

              NO, that's why I asked. As per John Oliver's last week tonight, "Did you know there are countries that are not America?"

          • array_key_first 2 hours ago ago

            Presumably try to get those women arrested, or at least investigate them.

            It's actually quite difficult to investigate an abortion, though. Abortion isn't "real", in the sense that there's no obvious difference between a natural abortion (read: miscarriage) and a purposeful one.

            The thing that means abortion abortion colloquially is the purposeful-ness of it. If you knowingly terminate a pregnancy, that's an abortion. If your body terminates its own pregnancy, for a variety of reasons because the human body is very complicated, that's not an abortion.

            Generally trusting people with that nuance is, I think, asking for trouble.

          • malfist 2 hours ago ago

            Do you really have to ask that question? They've criminalized health care. There's motive, history and current events to explain what they'll do with this information.

        • lagniappe 3 hours ago ago

          Are we assuming the lack of a recorded period is the criteria? If yes, what if you just forgot to add it that month, or have hormonal issues, or abnormal BMI?

          • pavel_lishin 3 hours ago ago

            You're welcome to suggest to your lawyer this particular defense.

            The people prosecuting women for abortions aren't looking for reasons not to arrest and prosecute them.

            • joe_mamba 2 hours ago ago

              >The people prosecuting women for abortions aren't looking for reasons not to arrest and prosecute them.

              Who are these people doing this?

              • Tangurena2 2 hours ago ago

                Texas & West Virginia is one of those states that prosecute women for having miscarriages. Texas offers a $10k bounty for turning in any woman who leaves the state and somehow returns without that pregnancy.

                > Nationally, about 20% of pregnancies end in a loss, which includes miscarriage or spontaneous abortion, ectopic pregnancy, stillbirth or fetal death, according to federal data. Only a small number are investigated as crimes. But advocates say the growing number of laws in some states place people’s actions following pregnancy loss under greater scrutiny from law enforcement.

                > Women in South Carolina, Georgia, Ohio, Arkansas, Texas, Mississippi, Oklahoma and several other states have faced criminal charges after a miscarriage or stillbirth for failing to seek immediate medical treatment, not pursuing prenatal care or disposing of the fetal remains in a way that law enforcement or prosecutors considered improper.

                https://www.themarshallproject.org/2024/10/31/stillbirth-okl...

                Many states prosecute black women who miscarry and one of their claims is that the woman took some (illegal - allegedly) drug that caused the miscarriage.

                > In the year after the U.S. Supreme Court dismantled the constitutional right to abortion in June 2022, more than 200 pregnant women faced criminal charges for conduct associated with their pregnancy, pregnancy loss or birth, according to a new report.

                https://missouriindependent.com/2024/10/01/200-women-faced-c...

              • intrinsicallee 2 hours ago ago

                https://www.cbsnews.com/news/georgia-woman-charged-murder-ab...

                https://www.newsweek.com/texas-gop-meeting-death-penalty-wom...

                https://www.theguardian.com/us-news/2025/sep/30/pregnancy-us...

                https://www.pbs.org/newshour/show/after-overturn-of-roe-more...

                "Abstract

                When Dobbs v. Jackson Women’s Health first overturned long-standing precedent protecting a woman's fundamental right to abortion, pro-choice leaders issued warnings about the possibility of prosecuting women for abortions. These concerns were dismissed as hysterical or as political theatrics because, in the past, women were rarely prosecuted for their own abortions. This note analyzes the history of illegal abortion before the Supreme Court’s ruling in Roe v. Wade to demonstrate that women were targeted, used as leverage against abortion providers, and sometimes arrested for their roles in the procedure." https://scholarship.law.slu.edu/lj/vol69/iss4/11/

              • triceratops an hour ago ago

                If there aren't people doing this why is it illegal?

          • cogman10 3 hours ago ago

            Lots of reasons why you would miss a period that aren't pregnancy related. But that's not the point. Missing a period opens you up to further scrutiny and investigation by the state. Now they will start seeing if you've made out of town trips or perhaps subpoena your chat log to see what you've said to friends and family. It's not enough to prosecute, it is enough to start an investigation.

            • Muromec an hour ago ago

              It's scary and all, but does it actually happen?

              • cogman10 an hour ago ago

                Does what actually happen? Prosecutions for abortions? Yes. Warrants related to people getting an abortion? Yes. A period tracker being used as the jump off point for those prosecutions/investigations? Hard to say, maybe? If the data is being sold it isn't hard to imagine that prosecutors and busybodies aren't currently mining that data.

                • Chris2048 44 minutes ago ago

                  > isn't hard to imagine that prosecutors

                  mainly because I have no idea whether it's realistic to imagine what prosecutors do. I can also easily imagine it to be illegal and wildly unrealistic behaviour for a prosecutor, in my ignorance.

                  > Warrants related to people getting an abortion?

                  The question here isn't whether abortion is illegal in some states, but about period tracking data could be used as evidence, or justify an investigation - especially data that is seemingly illegally obtained. AFAIK, illegally obtained evidence is normally not valid grounds for investigation, and might actually weaken the case based on "fruit of the poisonous tree" doctrine.

            • Chris2048 an hour ago ago

              Is there any precedent of subpoena-ing chat logs, or locale information, based on (illegally obtained information of) a missed period; or is this Handmaid's-Tale-fantasy territory?

          • triceratops an hour ago ago
      • freeAgent 5 hours ago ago

        If you stop having a period for a few months and then start again, it may be worth buying some location data during that time to see if you were near any medical offices that may have offered illegal abortion services.

        • juggina 5 hours ago ago

          Could they get a warrant for that data anyway?

          • _alternator_ 5 hours ago ago

            Not if you don't have the data. This is one of the reasons that google changed how it tracked people's data.

          • giantg2 5 hours ago ago

            Why get a warrant when you can just buy it?

            This whole data economy has significantly undermined privacy, including 4th amendment protections.

            • nwatson 4 hours ago ago

              Admissible evidence probably requires parallel construction and then a warrant. The purchased data is the catalyst but not legally actionable.

              • voakbasda 3 hours ago ago

                Parallel construction like that is unambiguously fruit from the poison tree. It should never be allowed, and the fact that it is used routinely is one of the many ongoing travesties in the US.

                • eszed 3 hours ago ago

                  My understanding is that it would be, if admitted to. That's where the parallel comes in: establish an evidentiary trail that's plausible enough to withstand defense scrutiny, and count on the court itself (ie, judge) not to dig any deeper.

                • some_furry 3 hours ago ago

                  Right, but since that's the world we have today, our threat models should all account for it until we can meaningfully change things.

              • giantg2 3 hours ago ago

                Do you have a ruling that says they can't used purchased data?

          • alistairSH 5 hours ago ago

            How would they select which women get warrants served if they don't have some basic cycle-tracking data?

          • pdpi 5 hours ago ago

            You can't (in theory) get a warrant "just because", you need to state the grounds for the search in your application for a warrant.

          • 2ndorderthought 5 hours ago ago

            What reason would they have to ask for a warrant without that data?

      • SamDc73 2 hours ago ago

        Not sure why, but they did cooperate with the government on such matters

        Facebook previously gave private Messenger chats to Nebraska police, these messages were used as key evidence to charge a mother and daughter over an alleged illegal abortion[1]

        [1] https://www.theguardian.com/us-news/2022/aug/10/facebook-use...

      • 2ndorderthought 5 hours ago ago

        Meta is a defense contractor. They absolutely would do this for money if asked. Just like how a good portion of HN would.

      • blks 2 hours ago ago

        To punish people they suspect in abortion, for example.

      • Lapra 2 hours ago ago

        The data is already being (ab)used in the UK. https://humanists.uk/2025/06/04/police-access-to-period-apps...

    • ndisn 4 hours ago ago

      “Reproductive rights” is a loaded term.

      • peen1slicker 3 hours ago ago

        This is a very insightful comment. Can you expand on it a little for the rest of the hackers here who might be less smart than you?

  • theptip 3 hours ago ago

    This one seems clear cut as a HIPAA violation. Glad to hear that interpretation was upheld.

    However, regardless, we really need to just kill the data broker business model.

    Speaking as someone who implemented GDPR for my startup when the law first came into effect, there were certainly rough edges.

    But the core premise that you simply cannot sell user data to sub-processors without consent is a powerful one that I believe would fix a lot of broken things in the US system.

    (Not least because the USG buys private data that would be unconstitutional for it to directly collect, but also things like the incentives for your cell phone provider to sell your location data to advertisers.)

    • haldujai 2 hours ago ago

      > This one seems clear cut as a HIPAA violation. Glad to hear that interpretation was upheld.

      Health and wellness apps aren’t covered entities under HIPAA so these disclosures are not violations of it.

    • russdill 3 hours ago ago

      Seriously, we have a country where a large fraction of our ad spend is for services that promise to remove your private data from data brokers. We could literally just pass laws so companies could not do this.

    • Cider9986 3 hours ago ago

      HIPAA makes our medical privacy worse, unfortunately.

      Same video, different platforms:

      (https://odysee.com/@NaomiBrockwell:4/HIPAA:7)

      (https://invidious.nerdvpn.de/watch?v=4sfIBRTcRpU)

      (https://youtube.com/watch?v=4sfIBRTcRpU)

      • culi 2 hours ago ago

        Great video, thanks for sharing.

        TL;DW: HIPAA was actually created to allow insurance companies to share patient data without having to get patient consent. Before HIPAA, data was more fractured and less commonly shared. The only privacy protections it offers is, e.g., your doctor not giving your data to your boss. But about 1.5 million private entities can legally access your data (everything from health startups to insurance companies to hospitals)

        • Cider9986 3 minutes ago ago

          Reminds me of this Seinfeld episode when Elaine was marked as "difficult" in her chart, and then she couldn't get a single doctor to see her. She wasn't allowed to see her chart or edit it after that. As soon as she got to a new clinic, they would receive a phone call from another doctor warning them not to treat her.

          S8.E5 The Package

          (https://redlib.catsarch.com/r/seinfeld/comments/168m2d9/anyo...)

          I doubt it was a critique of HIPPA, although the episode was published a little under 2 months after HIPPA was signed.

          How great would it be for our privacy if they went back to paper records, though.

        • FireBeyond an hour ago ago

          > But about 1.5 million private entities can legally access your data

          Somewhat. They are allowed to access it "for treatment purposes", not just to nose around out of curiosity.

          I found myself explaining this to a number of my patients (I used to be a paramedic) who were irate about disclosures they'd made to their therapist, doctor, etc., that they had said they didn't want revealed to other providers (but were actually germane to their care).

          "Does the HIPAA Privacy Rule permit doctors, nurses, and other health care providers to share patient health information for treatment purposes without the patient’s authorization? Answer: Yes. The Privacy Rule allows those doctors, nurses, hospitals, laboratory technicians, and other health care providers that are covered entities to use or disclose protected health information, such as X-rays, laboratory and pathology reports, diagnoses, and other medical information for treatment purposes without the patient’s authorization."

          https://www.hhs.gov/hipaa/for-professionals/faq/481/does-hip...

  • frankdenbow 6 hours ago ago

    its crazy to me that Flo is used so widely, as its started by Russian men and their treatment of data has bee public for a while, it just hasnt spread fast enough. I know theres at least one other option called Calessa (http://Calessa.app)

    • sevenseacat 3 hours ago ago

      There's a whole heap of different period tracking apps these days. I've been using Clue for probably a decade.

  • jeffbee 5 hours ago ago

    Does anyone happen to know if Meta and Google have ever recovered these judgements from the app developers? All of the industry terms of service specifically forbid SDK licensees from sending sensitive personal data to the platforms, and they require the licensee to indemnify the platform against any judgement that arises from violating those terms. See Meta's statement on this verdict, which seems pretty reasonable to me. This 100% looks like the fault of the app developer:

    “User privacy is important to Meta, which is why we do not want health or other sensitive information and why our terms prohibit developers from sending any.” Meta maintains that any transmission of sensitive health data is due to a failure to comply with its terms of use.

    • ozlikethewizard 5 hours ago ago

      I mean this seems like an attempt at a get out of jail free card. If meta didnt want this info, why are they accepting and processing it?

      • jeffbee 5 hours ago ago

        It's just a generic key-value API.

        • ndriscoll 4 hours ago ago

          That doesn't answer the question. It just restates the problem. Why aren't they doing diligence on what they're accepting from their business partners, or what types of partners they're working with? There's no reason they couldn't know the company deals with health data and place it under additional scrutiny.

  • aboringusername 6 hours ago ago

    I don't actually see this as a problem, and instead it's a PSA everyone needs to internalize:

    If you put data onto a networked device it may be sent to some place else.

    If you don't want your data being shared:

    Use a device that does not have any networking capability (both hardware and software wise)

    Use a pen and paper, you can shred and destroy as you see fit.

    If you're using an application on a mobile device with mobile data/wifi, the chances are, your data is being uploaded.

    • rconti an hour ago ago

      Of course you do, your comment is just clickbait. Here's why:

      | I don't actually see this as a problem

      Okay, go on, perhaps you have an interesting point

      | and instead it's a PSA everyone needs to internalize

      If it's not a problem, it's not a PSA because nobody needs to know or care. If it's something worthy of a PSA, then it must stem from a problem.

    • elsjaako 6 hours ago ago

      There are four open source period tracking apps on F-droid. I didn't do a full investigation of the source code, but unless your data is being uploaded outside the app (e.g. for backups), I feel safe assuming it will stay local only.

    • reorder9695 5 hours ago ago

      It sounds like the real solution to this is to be able to control permissions at an OS level for network per app, as you would be able to do if you had root access. I have no idea why regular Android distros don't allow you to do this, it seems like a really sensible thing to expose in app settings given the permissions model of Android.

    • tsukikage 5 hours ago ago

      Also: if you are not paying the service provider for the service, you are not their customer - you are their product.

      • nemomarx 5 hours ago ago

        If you do pay for a subscription, how can you be sure you're still not the product? What stops them from double dipping here?

        • loudmax 5 hours ago ago

          If you're paying for a subscription, the company might sell your data. If you're using a commercial service for free, they are certainly selling your data.

          Having said that, you're right to be suspicious of commercial services, even that you pay for. Someone can found a startup with a strong commitment to customer privacy and the best of intentions, but a few acquisitions or near bankruptcies later, those commitments will go out the window.

          • nemomarx 5 hours ago ago

            Relevant to this case, since they have a free version and premium one, they would probably just sell data from both sets of customers. It would be leaving money on the table otherwise, right?

            The small chance that they might go out of their way to not sell premium users data doesn't seem worth much.

      • nozzlegear 5 hours ago ago

        Flo isn't free though, you have to pay a weekly/yearly subscription to use it.

    • boesboes 6 hours ago ago

      that is a really fucked up view

      • defrost 5 hours ago ago

        Less a f-u-view, more a f-u-world, the above is pragmatic advice about the actual IRL challenges of keeping data secure.

        Further, a view that ignores many real world digital data risks faced by those considered to be useful targets; eg: compromised supply chains delivering "pre hacked" hardware with discreet wifi chips or hidden out of band comms, etc.

      • dspillett 4 hours ago ago

        Nah. A healthy view when dealing with the fucked up situation that is modern life.

    • vachina 5 hours ago ago

      You can use a networked device, but make sure the data is stored somewhere you control (and own).