Your passwords used on the Internet are likely known to bad people if you’ve recently logged into Yahoo, the CRA, or other popular websites. You should consider changing all of your passwords next week if you’ve used them on the Internet, in case they were exposed by an attack using the “heartbleed” bug. This flaw in OpenSSL security allows attackers to get a “heartbeat” response from affected servers, including your password in an unencrypted form.
With computer security, if you have high convenience, you’re likely experiencing a low level of security. So throw away those old passwords, and pick some new ones to use with different websites. The more passwords you have, the fewer sites you’ll lose access to if one password is learned by an attacker.