According to forensics firm Disklabs, letters, resumes, spreadsheets, phone numbers and e-mail addresses were all found on storage hardware that could be bought second hand on eBay.
In its test of how good users were at destroying data, Disklabs bought 100 hard drives and 50 memory cards - which included SD cards, flash drives, sim cards and memory sticks - from the auction site.
"Most people made only cursory attempts to erase the data," said Mr Steggles, "and some had not done even that."
If you are going to sell a storage device that you previously held important and personal data on, then for Heaven sake try to erase it properly. In these days of identify theft and the like, you canít be too careful.
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