Haven't changed your e-mail passwords recently? Do it today

A computer keyboard with letters stacked forming the word 'password' is seen in this illustration picture taken in Warsaw, December 12, 2013. REUTERS/Kacper Pempel/Files

If you're still using the same passwords for your e-mail accounts that you were using this time last year, change them. 

You should update them every so often, just in case they've been compromised. What's the chance of that, you ask?