Multi-factor authentication has become table stakes for business security. If your organization still allows password-only logins, you are operating with a known, exploitable vulnerability. But here is the uncomfortable truth most IT teams discover too late: not all MFA is created equal.
Attackers have adapted. Adversary-in-the-middle (AiTM) phishing kits now intercept SMS codes and push notifications in real time, allowing criminals to authenticate as your users even when MFA is enabled.
The solution is to upgrade to phishing-resistant authentication using Microsoft Entra ID—without disrupting your team.
Why SMS and Push MFA Are No Longer Enough
SMS-based MFA is actively targeted through SIM-swapping and AiTM proxies that capture credentials and MFA tokens simultaneously.
Even push notifications are vulnerable to MFA fatigue attacks, where attackers spam approval requests until someone taps Approve just to stop the notifications.
Phishing-Resistant Methods That Work
- FIDO2 Security Keys — cryptographically bound to your domain.
- Windows Hello for Business — biometric or PIN tied to the device TPM.
- Authenticator with Number Matching — blocks AiTM proxy attacks.
- Certificate-Based Authentication — for privileged admin accounts.
Conditional Access: The Policy Layer
Conditional Access evaluates every sign-in—requiring compliant devices, blocking legacy auth, and challenging unfamiliar locations.
Schedule a free security assessment with AventixIT to evaluate your identity posture.