12/19/2023 0 Comments Dos command to erase hard drive![]() In government, they tend to be paranoid about national security, and they require you to be absolutely sure. Handing it to volunteers who say they’ll do their best but have no formal accreditations is not an option. In a corporate environment there may be heavy penalties for loss of personal data and serious consequences for loss of IP, hence you need to be sure the data is gone. If we want to reduce waste further, it’d be great to be able to ensure that SSDs as well as HDDs can be confidently reused, so any additional detail you or others can share will be very helpful. I hear you - but many corporate players which when passing on laptops are insisting on removing and destroying storage before passing on their devices. Unless the intelligence services of a nation state might be interested in the data We already know that for some devices, data deletion from SSD isn’t a problem: I’m thinking about Android devices or Chromebooks, whereby full data deletion is possible, via the deletion of the encryption key, which is considered sufficient in rendering the device secure to reuse for a new user Especially as with the Fixing Factory project we’re looking at repurposing lots of laptops, and while we always prefer FLOSS options, we need to know what would be the relative advantages of a proprietary option (if any!) So, is the issue that no free and open source software solution provide a secure wiping of SSDs? It’d be useful to better understand. Start now to securely erase sensitive data from HDDs and complex SSDs in computers and servers. ![]() Through our patented SSD erasure process and technology, organizations now have a secure method to handle end-of-life storage devices safely” Darik's Boot And Nuke – 8 Dec 16 Blancco Drive EraserĭBAN offers a free trial of Blancco Drive Eraser. ![]() I’m not a fan of Blancco or any other proprietary software company - however they claims that their patented solution can be used to “securely erase sensitive data from HDDs and complex SSDs in desktop/laptop computers and servers. We’d like to avoid such practices in the future. Is this 100% true? Because if true, then giving a second lease of life to SSDs is not possible in many cases? I’m thinking about the big scandal of many corporates which prefer to destroy storage media rather than passing them on. It’s not possible to reliably wipe an SSD I wanted to better understand your following statement though: I also had not head of ShredOS previously, and it does indeed to operate quite in the same way as DBAN. If you’re a drug barron, then yeah, go ahead and use it! (And with a bit of luck the Serious Crime Squad might still be able to get enough evidence to put you away.) The TL DR? Unless the intelligence services of a nation state might be interested in the data, DBAN, nwipe or ShredOS should all be fine. It may be that DBAN is built on a Linux which doesn’t understand TRIM, but since you’re writing to every addressable sector, I can’t see that TRIM would make a difference. But even so, a specialist data recovery firm could probably unsolder the storage chips and recover some data, even if only from disused worn sectors, for a 3 or 4 figure sum. Multiple overwrites is completely pointless, except in as much as it may result in all viable sectors being recycled at least once. Previous existing data will remain in sectors awaiting recycling, and if the drive has detected that any are giving soft errors above a certain threshold they will be permanently left in a pool of worn sectors. If you write to every addressable sector, it’ll simply allocate new sectors for the zeros you’re writing - but the drive’s garbage collection will already have cleared them. It’s important to note, though, that it’s not possible to reliably wipe an SSD. It doesn’t connect to the Internet (or any network) so its attack surface is essentially zero. Apart from that I wouldn’t worry about lack of updates. ![]() Maybe DBAN no longer boots easily under UEFI. I’ve used DBAN and nwipe a fair few times but ShredOS is new to me. Can you explain please? DBAN, nwipe and ShredOS all use essentially the same code to do the wiping, with (as far as I can make out) pretty much identical user interface. You say “by its nature” DBAN won’t work on SSDs. ![]()
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