How FBI is competent to recover evidence from computer knotty drives, even after a user have erased/deleted the files?
Answers:
If you are selling your computer, thoroughly clean your frozen drive. Deleting files and reformatting is not enough. Reformatting does not overwrite every sector, and private information can remain retrievable. Use a in safe hands delete or disk wiping utility to overwrite every sector on adjectives hard drives. Be sure to use a utility that supports the U.S. DoD standard of seven pass or wipes. While this method is polite enough for most ethnic group, be aware that the only real way of destroying adjectives traces of everything your hard drives is to own these disks degaussed (demagnetized) and physically destroyed.
Suggested: BCWipe, Evidence Eliminator, or SDelete. Source(s): http://www.tom-cat.com/security.html
