That has a lot of people nervous about how they keep their information safe.
Kyle Frick with Mid Oreogn Credit Union says people should routinely check their online accounts for any unauthorized purchases.
'I'm a big fan of online banking. So you can check your account. A statement comes once a month. But I highly recommend you keep an eye on your account. If something doesn't look right, call your credit union or bank. That's going to alert you and keep you ahead of the game."
In data breach situations, like in the Target case, customers aren't on the hook for any fraudulent charges.