====How to electronically eradicate, expunge, extirpate, obliterate digital data==== ===Partitions=== All data on drive X may be **{{color c="red" text="permanently destroyed"}}** by using the following command (warning - this may take a very long time): %%dd if=/dev/zero of=/dev/sdX%% Confirmation of whether or not any non-zero bytes exist: %%dd if=/dev/sdX | hexdump -C | grep [^00]%% http://www.murga-linux.com/puppy/viewtopic.php?t=65509 ===Individual files=== Individual files may be made permanently inaccessible by: ~-[[ccrypt encrypting]] them first ~-then, deleting them in the usual way, e.g.: %%shred -uvz %% ====How to physically eradicate, expunge, extirpate, obliterate digital data==== http://www.youtube.com/watch?v=hqyc37aOqT0 ---- ==Categories== CategorySecurity