Submission + - One in 10 Used Hard Drives Contains Old Personal Data (threatpost.com) 1
In an effort to underscore the need to throughly scrub machines, mobile phones and memory sticks before passing them on, the Information Commissioner's Office contracted with the NCC Group to secret shop some 200 hard drives, 20 memory sticks and 10 mobile phones from primarily online auction sites in December 2010. Some also came from computer trade shows.
Using widely available freeware forensic tools, a team found more than half (52 percent) of the hard drives were unreadable or had been wiped of data. The remaining 48 percent still contained information, 11 percent of which held personal or corporate data.
In all, 34,000 files holding personal or corporate information were recovered, according to the study report.