Am 29.01.2015 um 14:54 schrieb Richard Stovall:
Another thread mentioned the difficulty of guaranteeing the secure
erasure of data from SSDs.
I recently had to return a personal laptop for replacement and could
not find a method for securely erasing its SSD. Googling around for
answers, I came upon the idea of encrypting the entire drive as one
way of virtually guaranteeing that data could not be recovered. That
made sense to me, and some before and after analysis with Winhex
seemed to support it as a viable solution for my purposes.
SSDs have a lot of spare sectors, and remap sectors which have been in
use very often. You cannot access those sectors any more through normal
software, and they keep their previous contents. To be on the safe side
you must install encryption software before ever writing any of your data.
Or check if the manufacturer offers a toolbox software for his SSDs.
Some include a full erase function. Let's hope that this still works
when your device needs repair, and that this function really does what
it should.
