Phishing and MFA Exploitation: Targeting Trust in Workflows
🔐 In 2025 attackers increased focus on weaknesses in multi-factor authentication (MFA) and the trust inherent in everyday workflows, with phishing used for initial access in 40% of incidents. Cascaded phishing leveraged compromised, legitimate accounts to craft highly convincing lures, while abuse of Microsoft 365 Direct Send enabled internal-looking spoofed messages. MFA spray attacks and device compromise—driven by voice phishing against administrators—targeted IAM tools and high-turnover device ecosystems, with higher education notably impacted. Defenders should harden device management, enforce strong lockout and conditional access policies, and adopt email protections such as Reject Direct Send and tightened SPF/DMARC.
