"Bruce Schneier has linked to yet another study that shows that
people don't securely delete data from drives before selling them.
This group purchased 111 supposedly clean hard drives and recovered
a lot of sensitive information including "national insurance
numbers, evidence of a married woman's affair and detailed
biographical information about children." I think the major issue
is that your common guy thinks that formatting the drive is the
solution to erase data, and anything more sophisticated than that
is too difficult or expensive. Here I'll show you how to easily
shred a drive using free Open Source tools.
"The basic problem with a regular format of a hard drive, is
that it generally doesn't actually go back and scramble all of the
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