Hafnium (group)

Hafnium
TypeCyber espionage group, Advanced persistent threat
PurposeState-sponsored cyber espionage
HeadquartersAllegedly China
Region served
Globally
MembershipUnknown
Main organ
Allegedly Ministry of State Security
AffiliationsAPT40
RemarksAlso known as Silk Typhoon

Hafnium (sometimes styled HAFNIUM; also called Silk Typhoon by Microsoft) is a cyber espionage group, sometimes known as an advanced persistent threat, with alleged ties to the Chinese government, particularly its Ministry of State Security. Hafnium is closely connected to APT40.