The Biden administration formally accused a group working for China’s Ministry of State Security of carrying out a series of attacks against vulnerable Microsoft Exchange servers earlier this year. The White House says it has “a high degree of confidence” that attackers associated with MSS conducted the global Exchange campaign. The Justice Department unsealed an indictment accusing four Chinese nationals of conducting a variety of cyber operations against U.S. and other organizations around the world. No formal sanctions or other punishments have been issued against the Chinese government.”]
Source: https://www.govinfosecurity.com/us-chinese-government-waged-microsoft-exchange-attacks-a-17098