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Informational Alert

Chinese Hackers Breached Email Systems Used by U.S. House Staff


Who is at risk

Staff members and personnel supporting key U.S. House committees—especially those dealing with foreign policy, intelligence, and military matters—are most at risk from this breach.

What to watch for

Unexpected or unauthorized access alerts on your official email account, unusual message activity, or IT notifications about suspicious logins.

What to do

If you work for a government office or handle sensitive information, immediately report anything unusual to your IT/security team and confirm that multi-factor authentication and strong email protections are in place.