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FBI Declares Major China-Linked Cyber Intrusion Threat

4/2/2026

Summary

Story summary

The Federal Bureau of Investigation (FBI) classifies a China-linked cyber intrusion as a 'major incident' with serious national security risk.
The breach was detected on February 17 and accessed an internal system storing sensitive law enforcement information.
The FBI notified Congress in early March, citing the Federal Information Security Modernization Act (FISMA).
Experts say the attack's sophistication suggests state-actor involvement and links to Chinese cyber-espionage.

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Story summary

The Federal Bureau of Investigation (FBI) classifies a China-linked cyber intrusion as a 'major incident' with serious national security risk.
The breach was detected on February 17 and accessed an internal system storing sensitive law enforcement information.
The FBI notified Congress in early March, citing the Federal Information Security Modernization Act (FISMA).
Experts say the attack's sophistication suggests state-actor involvement and links to Chinese cyber-espionage.