Microsoft on Monday said it detected Kremlin-backed nation-state activity exploiting a critical security flaw in its Outlook email service to gain unauthorized access to victims’ accounts within Exchange servers. The tech giant attributed the intrusions to a threat actor it called Forest Blizzard (formerly Strontium), which is also widely tracked under the monikers APT28, BlueDelta, Fancy Bear, FROZENLAKE, Iron Twilight, Sednit, and Sofacy.

Source: The Hacker News