Microsoft Exchange hack caused by China, US and allies say

WASHINGTON (AP) — The Biden administration and Western allies formally blamed China on Monday for a massive hack of Microsoft Exchange email server software and asserted that criminal hackers associated with the Chinese government have carried out ransomware and other illicit cyber operations.The announcements, though not accompanied by sanctions against the Chinese government, were intended as a forceful condemnation of activities a senior Biden administration official described as part of a “pattern of irresponsible behavior in cyberspace.” They highlighted the ongoing threat from Chinese hackers even as the administration remains consumed with trying to curb ransomware attacks from Russia-based syndicates that have targeted critical infrastructure.The broad range of cyberthreats from Beijing disclosed on Monday included a ransomware attack from government-affiliated hackers that has targeted victims — including in the U.S. U.S officials also alleged that criminal contract hackers associated with China’s Ministry of State Security have engaged in cyber extortion schemes and theft for their own profit.Meanwhile, the Justice Department on Monday announced charges against four Chinese nationals who prosecutors said were working with the MSS in a hacking campaign that targeted dozens of computer systems, including companies, universities and government entities.