Multiple Russian Threat Actors Targeting Microsoft Device Code Authentication

Starting in mid-January 2025, Volexity identified several social-engineering and spear-phishing campaigns by Russian threat actors aimed at compromising Microsoft 365 (M365) accounts. These attack campaigns were highly targeted and carried out in a variety of ways. The majority of these attacks originated via spear-phishing emails with different themes. In one case, the eventual breach began with highly tailored outreach via Signal. Through its investigations, Volexity…

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