When is the last time you've changed your password and/or PIN?  Are you sure you have chosen a strong password?  There are some reputable password checking websites you can use to check your password.  

If you haven't changed your password in a while or if your password isn't very secure, you should consider changing it and to something secure.  Within the past month, I know three people whose online mail accounts (two Yahoo and one MSN) were compromised and used to send spam e-mail out to people in their address books/contact lists.

Every now and then, I like to post PSAs like this and I mainly do it on the San Francisco board.  

Despite my handle, I am NOT affiliated with the TER staff in any way, shape or form.

Peace...