The Fortra Intelligence and Research Experts (FIRE) team explains in Help Net Security how the Mirage2FA phishing kit uses HTML smuggling and obfuscated JavaScript to evade detection and steal Microsoft 365 credentials during MFA prompts. The team highlights that attackers use business-themed lures and realistic login flows to capture credentials and enable account takeover. This matters to organizations because successful attacks can expose email, files, Teams messages, and other connected SaaS resources, increasing the risk of widespread compromise.
Excerpt: “The likely goal is Microsoft 365 account takeover. If a user submitted credentials, the attacker may have been able to access email, files, Teams messages, SharePoint content, and other connected SaaS resources.” — Cadence Riddle, FIRE team member
