If your password is on this list of 25 most not secure passwords for 2014, change it immediately. If your passwords aren't at least eight characters in length (and preferably have a combination of letters, numbers, and special characters), you are strongly encouraged to take steps to change your passwords.
If keeping up with your numerous passwords is getting to be too much, we recommend using a password manager to protect your passwords and help you generate passwords that are random and thus more difficult for others to guess correctly. SplashData and RoboForm are two companies that do this well.
Here's the list: