Linux Data Hiding and Recovery
Linux Security looks at
Linux data hiding and recovery.
"Some overview of what remains on disk after file deletion, how it can be discovered and how such discovery can be prevented are provided in Secure Deletion of Data from Magnetic and Solid-State Memory by Peter Gutmann. The author recommends overwriting files multiple times with special patterns. Against casual adversaries, simply overwriting the file with zeros once will help."
(Submitted by Noel Thu Mar 14, 2002 )
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