[APT3](https://attack.mitre.org/groups/G0022) is a China-based threat group that researchers have attributed to China's Ministry of State Security.(Citation: FireEye Clandestine Wolf)(Citation: Recorded Future APT3 May 2017) This group is responsible for the campaigns known as Operation Clandestine Fox, Operation Clandestine Wolf, and Operation Double Tap.(Citation: FireEye Clandestine Wolf)(Citation: FireEye Operation Double Tap) As of June 2015, the group appears to have shifted from targeting primarily US victims to primarily political organizations in Hong Kong.(Citation: Symantec Buckeye)
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