These encrypted files could actually be broken by anyone with the time and resources. But really, what fool would go to all that effort to steal one credit card number when many e-commerce companies make the mistake of storing all their customer financial information unencrypted in their databases? Worse, a number of e-commerce companies that use a particular SQL database software badly compound the problem: They have never changed the default system administrator password for the program. When they took the software out of the box, the password was "null," and it's still "null" today. So the contents of the database are available to anyone on the Internet who decides to try to connect to the database server. These sites are under attack all the time and information does get stolen, without anyone being the wiser.