Persistence of data on storage media

Most people I’ve met don’t think twice about what happens when they press the delete key, or drag a file to the trash/recycle bin. The guys at Security Focus have written a nice article on this subject which will be eye-opening for anyone who hasn’t read about it before. The sad thing is that this information has been common knowledge in the IT community as far back as I can remember, yet it is still a problem to this day.