Contain the SSO blast radius: Identity security beyond MFA
Over the past week, multiple research teams have documented a renewed wave of voice-led social engineering (vishing) targeting identity providers and federated access. The entry point is not through malware or a zero-day exploit. The goal is simple. Persuade a user to help complete authentication in real time, then use that trusted session to move through SaaS applications and exfiltrate data. Security leaders already know the fundamentals. Multi-factor authentication (MFA) can be socially engineered.