The Chinese APT believed to be behind the exploitation of vulnerabilities in the Microsoft Exchange email server to access user emails. Historically, Hafnium has primarily targeted entities in the United States.
Suspected victims
  • Various industry sectors, including state and local governments, universities, defense contractors, law firms, medical researchers, think tanks, and others
Suspected state sponsor
  • China
Type of incident
  • Espionage
Target category
  • Civil society
  • Private sector
  • Government