Here are steps you can take to see if your information was stolen and then what to do if your social security number and other personal data were leaked in the massive data hack. A recent breach involved nearly 3 billion personal records and included many social security numbers. Was yours one of them?

If your social security number is exposed in a breach or leak, it's important that you act quickly to prevent identity thieves from doing more damage. We'll give you some steps to take.