Even MFA Isn’t Enough: How Attackers Are Hijacking Microsoft 365 Sessions – And What You Can Do About It
In February 2025, Microsoft disclosed an active phishing campaign conducted by a Russian state-aligned threat actor, Storm-2372. Unlike conventional phishing, this campaign exploited a legitimate Microsoft login feature—device code flow authentication—to bypass even phishing-resistant MFA and gain access to Microsoft 365 accounts. The attack is deceptively simple, difficult for victims to detect, and effective even in mature security environments. What […]