[TriLUG] Computer and copier Data Security and Secure Erase

[Brian Daniels]

On newer drives, you can run the secure erase routine from hdparm:

https://ata.wiki.kernel.org/index.php/ATA_Secure_Erase

This should theoretically be more secure than just a dd overwrite (gets 
spare/inaccessible sectors), but either is effective.

--Brian

-- 

And yet less thanks have we than you.  Users scowl at us, and reporters
give us scornful names.  "Geek" I am to one fat man who lives a firewall
away from foes that would steal his identity or lay his little computer
in ruin, if it was not guarded ceaselessly.  Yet we would not have it
otherwise.
                                     ---Aragorn, sysadmin.

Brian Daniels                  bitmage at pobox.com
       http://www.eviloverlord.net