FBI Declares Chinese Hack of Surveillance System ‘Major Cyber Incident’

The FBI has classified a suspected Chinese hack of its surveillance system as a 'major cyber incident' under FISMA guidelines, indicating significant national security implications. The breach, detected on February 17, 2026, compromised an unclassified Digital Collection System containing law enforcement sensitive data including pen register and trap-and-trace surveillance returns and personally identifiable information of FBI investigation subjects. While the actual content of intercepted communications was not exposed, the surveillance metadata could provide valuable counterintelligence to foreign adversaries. The sophisticated attack leveraged commercial Internet Service Provider infrastructure to exploit FBI network security controls. This marks a rare FISMA major incident declaration for the FBI, with thresholds requiring likelihood of demonstrable harm to national security. The White House is coordinating response efforts with FBI, NSA, and CISA as remediation continues.