On Mar 9, 2009, at 10:32 PM, Mads wrote:

I know of procedures and programs to erase files securely from disks, Guttman did a paper on that....

What I don't know is how to securely erase information from a database.

If the material is that sensitive, and you only want to selectively delete the information, the only way is to:

1) delete the information from the database using the commercial means,
2) export the database
3) Inspect the exported data to ensure all the sensitive information is deleted
4) import the database to another storage system.
5) destroy (degauss, wipe) the original storage system.
6) the truly paranoid would destroy the raid controllers also (since it contains NVRAM)

Not trivial...


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