Microsoft Disrupts EvilTokens AI-Powered Phishing-as-a-Service Campaign
Microsoft, in coordination with law enforcement and industry partners, has dismantled EvilTokens, a Phishing-as-a-Service (PaaS) platform that exploited the Microsoft OAuth 2.0 device-code authentication flow. The campaign compromised over 12,000 Microsoft 365 mailboxes across 10,000 organizations globally by intercepting valid session tokens rather than traditional passwords. The platform utilized an integrated AI chatbot to automate mailbox reconnaissance and Business Email Compromise (BEC) fraud generation. The disruption involved seizing 50 websites and over 150 domains, following the arrest of two UK-based operators. This incident highlights the critical risk of abusing legitimate authentication flows to bypass multi-factor authentication (MFA) and the increasing integration of generative AI into automated cybercrime ecosystems.