A sweeping hack of the federal judiciary's case filing system exploited unresolved security holes discovered five years ago — allowing hacking groups to steal reams of sensitive court data in the ...

Steven Adair wasn’t too rattled at first. It was late 2019, and Adair, the president of the security firm Volexity, was investigating a digital security breach at an American think tank. The intrusion ...

China's cybersecurity experts over the past decade have evolved from hesitant participants in global capture-the-flag competitions, exploit contests, and bug bounty programs to dominant players in ...