State-sponsored cyber operations, APT groups, and cyber espionage.
U.S. intelligence agencies warn that Chinese state-sponsored hackers have maintained undetected access to American critical infrastructure networks for at least five years.
A Russian state-sponsored hacking group is exploiting Microsoft Teams to deliver malware to Ukrainian government officials through targeted social engineering attacks.
Microsoft attributed mass exploitation of four chained zero-day vulnerabilities in Exchange Server — dubbed ProxyLogon — to a state-sponsored Chinese threat actor it tracks as HAFNIUM.
The Cyber Unified Coordination Group formally attributed the SolarWinds Orion supply-chain compromise to Russia's Foreign Intelligence Service (SVR), describing it as a likely intelligence-gathering operation.