Targeting of Microsoft Exchange and MySQL servers
Date of report
  • September 2021
A Chinese threat actor that had been launching attacks using the novel backdoor technique SideWalk for several months is associated with the Chinese threat actor Winnti Umbrella. The attacks targeted businesses and academic institutions in the United States.
Suspected victims
  • U.S. universities and media companies
Suspected state sponsor
  • China
Type of incident
  • Espionage
Target category
  • Private sector
  • Civil society