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Joined 1 year ago
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Cake day: August 25th, 2025

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  • The devices in question all were fat formatted, for which it is quite easy to reconstruct most of the “deleted” content using readily available simple tools (which I did).
    But that was some time in the past, nowadays most systems use some kind of base encryption, making it less likely to easily find something.
    The phone, on the other hand, was just not doing a factory reset before selling it, but only deleting files (and missing stuff, like some mail folders) and not having a password-protection at all… 😬


  • Thing seems to be though, that OP did not use LUKS consistently, but mixed with unencrypted uses.
    In this case, fast, file-oriented secure-erase (or just throwing away all the LUKS headers, if the remaining partition was encrypted) might miss the remnants of old unencrypted uses.
    So, specifically in OPs case, I am not sure if there is another safe option than a full-device overwrite e.g. using dd.


  • some small percentage of the data will still be around, because they do overprovisioning.

    That’s why I wrote “directly accessible data”. You are certainly right that safely erasing all data on SSDs is hard to impossible to achieve, but so is the read access to it.
    That means if we disregard the drug distribution or similar scenarios, should be enough for the normal person.

    But I mean secure wipe isn’t hard… It’s copy-pasting 2 more commands from the Arch wiki, compared to the dd command.

    But it will take significantly longer (typically using /dev/random and multiple passes) without noticably increasing security for SSDs.

    It will have also have the same possible write-speed-penalty issue as the zero-overwriting, but this won’t be OPs problem any more because he is selling the SSD.


  • Is anyone even likely to be curious enough to look?

    Well, can only speak for me, but first thing I do.
    I mean, you can never know which administrative scandal you might uncover…
    I stop the moment I find private stuff, though.
    Had that three or four times already, the only case I was considering doing something about it was a completely unsecured and unerased phone still containing a bunch of business emails that clearly were sensitive or even confidential stuff.
    I just told the seller how he screwed up here, instead of making a bigger fuss out of it.






  • But somebody made a decision to not have you guys killed

    Absolutely, not questioning that for a moment!
    (Same reason my wife wears similar lights when riding her horse along public roads in winter also it also looks embarrasing).

    My military time has been before the incident you mentiioned btw (got drafted in 1995 for 10 months), which makes the incident even more tragic (if they didn’t use the warning lights), as the lights at the rear seem to already have been common practice in some armies at the time…


  • Multiplexer@discuss.tchncs.detomemes@lemmy.worldPick one
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    17 days ago

    I fondly remember back in the days doing military exercise marches on public roads:
    The last soldier in the column would have to walk with a signalling light attached to the top of his helmet.
    I typically walked in some front row (benefit of being tall and placed there for some military-aesthetics reasons), so was at least spared that embarrassment. :-)