Microsoft: Chinese Cyberspies Used 4 Exchange Server Flaws to Plunder Emails
Krebs on Security 2021-03-02
Summary:
Microsoft Corp. today released software updates to plug four critical security holes that attackers have been using to plunder email communications at companies that use its Exchange Server products. The company says all four flaws are being actively exploited as part of a complex attack chain deployed by a previously unidentified Chinese cyber espionage group.