Compromise of Marriott International
Date of report
  • November 2018
  • Suspected to be the work of Chinese operatives working for the Ministry of State Security.
Marriott reported a massive data breach that affected up to five hundred million customers in its Starwood hotels reservation system. U.S. private investigators believe China is behind the hack.
Suspected victims
  • Marriott International Inc
Suspected state sponsor
  • China
Type of incident
  • Espionage
Target category
  • Private sector
Victim government reaction
  • Yes