In the massive National Public Data breach last December, a reported 2.9 billion records were stolen. You can check if your Social Security number was compromised and take steps to protect your information if it was leaked. According to National Public Data, a third-party bad actor hacked into the data and leaked the stolen information on the dark web. Here are steps you can take to determine if your information was stolen and safeguard your Social Security number. If you suspect your Social Security number was stolen, you can utilize online tools to check for free. National Public Data is cooperating with authorities and conducting a review of potentially affected records. If your information was stolen, closely monitor your financial accounts for unauthorized activity. Additionally, you can follow guidelines to protect your information and prevent identity theft in the future.