Recent analysis of high profile password leaks such as LinkedIn and Yahoo has shown that 1 out of every 50 people use a password that is in the list of the top 20 worst passwords. If you multiply that by the number of people on the Internet thousands of people are reusing the same passwords. This common behavior has made life very easy for criminals because using this list they will break into an account on average once for every 50 attempts.
If your passwords is on this list change it immediately.
Here are the most common worst passwords to use on the Internet:
(view the entire list of 500 worst passwords of all time)
List of passwords from: www.whatsmypass.com
View the list of the 10,000 Top Passwords