A member of an alleged hacking group is seen in a file photo. Nicolas Asfouri/AFP via Getty Images
Twenty-three cyber, defense, and intelligence agencies from the United States and other countries released a joint advisory on Aug. 27, laying out the playbook used by Chinese state-sponsored hackers that breached major U.S. telecoms last year, and urging networks to hunt for this malicious activity.
Authorities say these malicious cyber threat actors have compromised networks worldwide to feed a Chinese state-sponsored espionage system.
