Find out how secure your passwords are
How Secure is my Password is a very simple website, but there's no doubt some clever number-crunching going on behind the scenes. Enter a current password, or one you're planning to use, and the site tells you how vulnerable the password is:
Most four letter profanities fall within the top 500 most-common passwords that could be cracked straight away. However, a combination of my date of birth followed by my home phone number proves rather more challenging.
Except I've now just told the whole intermaweb. Balls. A help page on choosing strong passwords goes on to detail how brute force attacks and dictionary attacks can give hackers access to your account; a Pentium 100 PC might typically be able to try 200,000 combinations every second, meaning a six character password containing just upper and lower case characters could be guessed in only 27½ hours.