If you have not heard, a Russian based hacking group has compromised over 1.2 billion usernames and passwords. It is time to change your passwords on critical sites where you perform banking, and on sites that you use for ecommerce.
When you do change your password, it is a good idea to use different passwords for different websites. That way if one gets compromised, you will not have to worry about the other websites being compromised. Find more about the compromise here: http://time.com/3086191/russian-hack/.