China state-backed hackers compromised networks of at least 6 U.S. state governments, research finds Arjun Kharpal reports: A Chinese state-sponsored hacking group successfully compromised the computer networks of at least six U.S. state governments between May 2021 and February this year, according to [research] published by cybersecurity firm [Mandiant] on Tuesday. The group, known as APT41, allegedly exploited vulnerabilities in web applications to get their initial foothold into state government networks, Mandiant said.