Microsoft Entra Multi-Factor Authentication (MFA) delivers a second line of defense. It forces attackers to get past more than just stolen credentials. With MFA, signing in means proving identity through something you know, something you have, or something you are.
Entra MFA works across cloud apps, on-premises systems, and hybrid environments. It integrates directly with Microsoft Entra ID (formerly Azure Active Directory), letting you apply conditional access policies, configure authentication strength requirements, and enforce verification methods like SMS, phone calls, and authenticator apps.
Configuration starts in the Microsoft Entra admin center. Enable MFA for users or groups. Combine it with Conditional Access to trigger verification only when risk signals appear — like login attempts from unknown devices or suspicious networks. Engineers can secure APIs by requiring token acquisition via MFA, while administrators can protect privileged roles with stronger factors such as FIDO2 security keys or biometric verification.
MFA in Entra also supports adaptive authentication. Signals from Microsoft’s security graph detect anomalous behavior. If a login is high risk, the system demands extra proof or denies access entirely. This reduces friction for legitimate users while raising barriers for attackers.