The FBI has declared a recent China-linked hack of a system, which contained pen register and trap and trace surveillance returns, a "major incident"

The FBI has officially classified a recent China-linked cyberattack on its systems as a "major incident" — a designation that signals serious damage.

The compromised system held pen register and trap-and-trace surveillance returns. For the uninitiated, that's metadata showing who's calling whom and when — the bread and butter of law enforcement surveillance operations.

The "major incident" label strongly suggests hackers didn't just knock on the door. They got inside and grabbed swathes of sensitive data stored directly on FBI infrastructure. That's not a probe. That's a full breach.

The revelation raises sharp questions about the security posture of one of the most prominent law enforcement agencies on the planet. If the FBI's own surveillance data isn't safe from foreign intrusion, the implications ripple far beyond one compromised system.