• Fubarberry
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    821 year ago

    It restoring deleted photos onto wiped devices that have been resold is a privacy nightmare.

    • @SzethFriendOfNimi@lemmy.world
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      1 year ago

      I wonder if they’re doing that to reduce the write cycles on the cells and since they’re “encrypting” the contents of the cells they figure the overall IO flag of the data being deleted is “good enough”.

      So, in a perfect world, when you wipe the phone it’s basically just trashing the encryption key and so it’s useless data.

      That’s all assuming that the encryption method/keys are foolproof which is always a bad bet.

      And, this here makes me wonder how effective that is.

      And a person claimed in a later post that “around 300” of their old pictures, some of which were “revealing,” appeared on an iPad they’d wiped per Apple’s guidelines and sold to a friend.

      That’s a huge issue. Not just for photos but also files for sensitive data, secrets, etc. this, if true, is a massive issue overall since it even happening at all shouldn’t be possible.

      • Em Adespoton
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        141 year ago

        Indeed. If true, it means Apple’s technology doesn’t work the way they claim. Which is a really big issue.

      • @kevincox@lemmy.ml
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        1 year ago

        It seems unlikely that this is accidentally reading old encrypted data blocks. The filesystem wouldn’t even try to access data that it hasn’t written to yet. So you would need both filesystem bugs and bugs with encryption key management.

        I think the theory that iCloud is accidentally restoring images based on the device ID is much more likely. It is also quite concerning but seems more plausible to me.

  • Blaster M
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    571 year ago

    So now we know, iPhones and iPads don’t TRIM their storage memory.

      • Here’s the ELI5.

        Imagine there’s a set of lockers in a school.

        When a student leaves the school or changes lockers they remove the label on the locker but don’t empty it.

        A TRIM, however, means that they not only remove the label from the locker by also clean out its contents.

      • Blaster M
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        81 year ago

        TRIM is a command / instruction for solid state storage to release a block of data, so it is blanked and ready to be written again.

      • @kevincox@lemmy.ml
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        1 year ago

        Usually when you “delete” data on a storage medium you really just remove a reference to it. The data is still sitting on the disk if you know where to look. TRIM is a command that tells the storage device “I don’t need this anymore” and usually the hardware will return empty data the next time you read it (really the hardware is doing the same thing of just forgetting that there is data there, it is turtles all the way down, but it will track that this block is supposed to be empty and clear it when you next read it).

        However I think this is an unlikely theory. It would require two bugs:

        1. The OS would be trying to read data that isn’t supposed to exist. This would be a bug on its own that would likely be quite visible.
        2. The iPhone uses disk encryption, and when you reset the device the key is (supposed to be) reset, meaning that even if you read the old data it would be useless.

        Both of these would be very significant and unlikely to last long without being discovered. Having both be present at the same time therefore seems very improbable to me.

  • @krnl386@lemmy.ca
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    191 year ago

    I wonder if this has anything to do with Apple’s CSAM scanning. You know, hang on to the photos as evidence, and, for an added bonus, sell more iCloud storage because the “System Data” now exceeds the free iCloud data storage quota. Win-win!

  • @CluckN@lemmy.world
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    171 year ago

    One user also said they saw a photo return even though they don’t sync their phone or use iCloud

    I was assuming that all these people had photos save to iCloud when it launched years ago and are seeing them appear now. If it’s not an old desync bug between deleting images off of iCloud/local device then this will be interesting.

  • @Lemmchen@feddit.de
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    171 year ago

    And a person claimed in a later post that “around 300” of their old pictures, some of which were “revealing,” appeared on an iPad they’d wiped per Apple’s guidelines and sold to a friend.

    How would that even work? Wiping a device resets the encryption keys, doesn’t it?

    • @kevincox@lemmy.ml
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      51 year ago

      It sounds like these aren’t still on the device somewhere, but re-downloaded from iCloud.

      So presumably the device ID is somehow being used to incorrectly “authenticate” to iCloud and old images are being restored.

      This definitely raises some major concerns about how iCloud authentication works.

    • meseek #2982
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      51 year ago

      It actually doesn’t seem possible as there are too many systems that need to fail for it be true. The encryption key, access to another Apple ID and Photos having access to it all.

      We are finding out that it’s not the images that are restored, but the thumbnails. Which is why the images are low quality when opened. The original photos are gone but the thumbnails still survive on Apple’s servers. Likely just cached. Which of course only applies to those logged into their accounts, not on other wiped devices.

    • @lepinkainen@lemmy.world
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      51 year ago

      And the images are tied to an Apple ID.

      So somehow the fully factory reset iPad accidentally logged in to the old Apple ID and merged deleted photos to the new Apple ID

    • @kevincox@lemmy.ml
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      31 year ago

      I should absolutely be able trust my phone to store my private data. If my phone isn’t trustworthy that is an issue that should be resolved. I mean sure, every copy of data is a risk, but there are a lot of more valuable data (in my opinion) on my phone than nudes.

      • @KrapKake@lemmy.world
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        11 year ago

        Yes you should, but you have take your data safety into your own hands. You cannot trust Google, Apple, and other big tech companies. That is not to say that these companies should get away with the things they do, there should be punishment… but that is the reality.

  • @dev_null@lemmy.ml
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    21 year ago

    I hope we will get to the bottom of this, because all the armchair experts with tons of different explanations for how this happened are annoying. There are so many people confidently explaining different conflicting theories.

  • taanegl
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    21 year ago

    Apple, or as I’ve taken to call it, Mother Superior.