Regardless of how careful you are online, your personal data can still end up in the hands of hackers—and a new data breach that exposed the data of 2.9 billion people is the perfect example of this.

As reported by Bloomberg, news of this massive new data breach was revealed as part of a class action lawsuit that was filed at the beginning of this month. A complaint submitted to the US District Court for the Southern District of Florida claims the exposed personal data belongs to a public records data provider named National Public Data, which specializes in background checks and fraud prevention.