Capital One says a hacker exposed the personal data of its customers, including about 140,000 Social Security numbers and tens of thousands of bank account numbers. Tens of millions of credit card applications were also stolen. The FBI arrested Seattle software engineer Paige Thompson over the breach and charged her with computer fraud and abuse. Thompson’s online activity led investigators to her, as she allegedly boasted about the hack on social networking sites.

Last week, credit bureau Equifax settled for at least $650 million over a 2017 data breach that affected the personal information of more than 147 million consumers—the largest such settlement for a data breach.