As part of a prosperous Chinese-language underground economy, cybercriminals are illegally monetizing big data by selling it to scammers, threat groups or even marketers.
A Chinese attack group called Hafnium has exploited for zero days in Microsoft Exchange to steal data from inboxes and take control of compromised servers.
CISA says attackers affiliated with China's Ministry of State Security have been targeting public vulnerabilities in VPN appliances and F5 networking gear.
The Department of Justice indicted four members of China's People's Liberation Army in connection with the Equifax data breach in 2017.