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FBI Declares Surveillance-System Breach a Major Cyber Incident

The designation signals risks to national security under federal breach rules.

The seal of the Federal Bureau of Investigation is displayed outside the agency's headquarters in Washington on Feb. 20, 2026.
From left, FBI Director Kash Patel, Defense Intelligence Agency Director James Adams III, Director of National Intelligence Tulsi Gabbard and Acting Commander of the U.S. Cyber Command William Hartman testify before the Senate Committee on Intelligence hearings to examine worldwide threats on Capitol Hill Wednesday, March 18, 2026, in Washington. (AP Photo/Jose Luis Magana)

Overview

  • The FBI has designated a breach of a surveillance-related system a major cyber incident and has notified Congress.
  • The bureau says intruders accessed the network using infrastructure from a commercial internet service provider.
  • The affected unclassified environment stored pen-register and trap-and-trace returns and personally identifiable information from FBI cases.
  • Those records capture who contacted whom and when, not call audio, which can reveal who investigators are tracking.
  • Investigators and reporters see echoes of the 2024 Salt Typhoon telecom breaches tied to China, and the White House, NSA, and CISA have joined the probe.