3 ms·
Overwriting data to safely delete it is usually enough, most of the recommended additional overwriting is snake oil. Unfortunately, overwriting data still takes
by chmars 14y ago
Overwriting data to safely delete it is usually enough, most of the recommended additional overwriting is snake oil. Unfortunately, overwriting data still takes a lot of time.
Using system encryption is therefore easier: You delete the key and your data is as good as overwritten a million times … all modern operation systems offer system encryption by default.
- cheeseprocedure 14y agoDisk encryption wouldn't defeat an attacker that had access to your keys (either by compromising a running system or through a cold-boot attack[1]). If the keys are available, the contents of the disk are accessible. Overwriting deleted files would still have value in these cases. [1] https://jhalderm.com/pub/papers/coldboot-sec08.pdf https://jhalderm.com/pub/papers/coldboot-sec08.pdf