Leviathan
Leviathan is a China-attributed nation-state APT group with an espionage motive, tracked by Brandefense. It targets 11 sectors, including Government and Technology, in 22 countries, including the United States and the United Kingdom. It uses 78 MITRE ATT&CK techniques and exploits 9 known CVEs.
- Origin
- China
- Techniques
- 78
- Exploited CVEs
- 9
- First seen
- Jan 1, 2009
- Last seen
- Sep 1, 2022
- Record updated
Who They Target.
About Leviathan.
Leviathan is a Chinese state-sponsored cyber espionage group that has been attributed to the Ministry of State Security's (MSS) Hainan State Security Department and an affiliated front company. Active since at least 2009, Leviathan has targeted the following sectors: academia, aerospace/aviation, biomedical, defense industrial base, government, healthcare, manufacturing, maritime, and transportation across the US, Canada, Australia, Europe, the Middle East, and Southeast Asia.
Last updated Sep 11, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.