On Sat, Sep 25, 2021 at 1:40 AM jedenfalco <jedenfa...@protonmail.com> wrote: > ... > > It can't, because that's not how shred works. Recursively shredding > > files within a larger filesystem does NOT guarantee that the old file > > is wiped out, because modern file systems tend to write the new file > > to a different part of the block storage while leaving the old storage > > unchanged other than marked as unused; with the right software, it's > > fairly trivial to read the contents of those areas of the disk. ... > > Could it work on a specific partition?
As Eric explained, it depends on the disk but the answer is likely no. For solid state drives see "Reliably Erasing Data From Flash-Based Solid State Drives," https://www.usenix.org/legacy/events/fast11/tech/full_papers/Wei.pdf. Jeff
