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SSD storage makes it pretty much impossible to overwrite data on the disk from the OS. Because writing is all handled internally and is copy on write you cant j
by ghthor 6y ago
SSD storage makes it pretty much impossible to overwrite data on the disk from the OS. Because writing is all handled internally and is copy on write you cant just write to disk sectors. The internal firmware will route the write to different parts of the disk.
- schoen 6y agoI've been aware of that in the past, but it slipped my mind when I was asking this question. (So thanks.) Has anyone investigated the wear leveling of mobile device storage to see how bad/tractable this situation is at the moment?
- simcop2387 6y agoThis is one of the reasons that FDE on an SSD is so important, even if you still have it send discard through to the device to mark blocks as unused it'll still make things much more difficult to reconstruct and decrypt deleted data later. Probably not perfect but it's one more layer of defense that will be more difficult to break.