Suspected state-backed Chinese hackers used a security hole in a popular email security appliance to break into the networks of hundreds of public and private sector organisations globally, nearly a third of them government agencies including foreign ministries, the cybersecurity firm Mandiant said Thursday.
“This is the broadest cyber espionage campaign known to be conducted by a China-nexus threat actor since the mass exploitation of Microsoft Exchange in early 2021,” Charles Carmakal, Mandiant's chief technical officer, said in a emailed statement. That hack compromised tens of thousands of computers globally.
