The Biden administration and its allies has formally accused China of the mass-hacking of Microsoft Exchange servers earlier this year, which prompted the FBI to intervene as concerns rose that the hacks could lead to widespread destruction. The mass-hacking campaign targeted Microsoft Exchange email servers with four previously undiscovered vulnerabilities that allowed the hackers — which Microsoft already attributed to a China-backed group of hackers called Hafnium — to steal email mailboxes and address books from tens of thousands of organizations around the United States. Microsoft released patches to fix…
