A probe by University experts found that computer equipment sold on eBay often contains all sorts of information. They found things like explicit emails, business secrets, usernames and passwords, children's school records, etc.
A check of 100 hard drives showed that half of them contained private information. Great, now we are going to get people phishing for user names and passwords by purchasing computer equipment on eBay.
Hey dummies, if you want to sell your computer, maybe you should erase the hard drive (do a low-level format to be safe)!