These days no one is immue to the “data binging”. The reason I say that is because everyone has an MP3 player, digital camera, and or both, not forgetting resumes, personal finance spreadsheets etc.. We are constantly moving from one system to another in our quest for “better and bigger”, and in doing so leave some data behind, which if it ends up in wrong hands will cause you your credit rating or identity theft.
 If you are going to sell you laptop/desktop, please make sure to erase all data on the drive. Delete helps, but this data is still recoverable as it only deletes the address, while the data is still in the disk. This data can be recovered by the prying eyes.
I have come across an excellent utility DBAN, which is very helpful in erasing all the data on a particular drive.ÂÂ
Warning: You have to be absolutely sure that you do not need the data, as it will not be recoverable after the above mentioned utility has been used.