I've looked around for the answer to this but can't seem to find it, apologies if I've missed it.
Does the overwrite files option shred any files in the trash folder (in Ubuntu or the recycle bin in windows)? Also, does anyone know if the overwrite option overwrites file slack?
I enabled BleachBit’s "overwrite" and want to know if it prevents recovery.
Overwrite replaces file bits, but effectiveness depends on pass count, pattern, and media. It can work on old HDDs with proper patterns; SSDs/USB flash often retain data due to wear‑leveling, so secure-erase or encryption is safer. If BleachBit doesn’t state its pattern/passes, I can’t fully trust "overwrite."