If you use the same email and password for any other services like psn, XBL, PayPal etc etc etc there's a chance these more valuable services will also be compromised. Hackers will enter your yahoo details into a program and it will test it on a whole range of services.
So if you use the yahoo email and password on other services then change them. Luckily for you they have a billion accounts to get through so it could be a while.
Luckily for me I never liked yahoo and never even made an account. This company are already in big trouble and the publicity from this will do massive damage to an already massively damaged brand.







