First, download the Microsoft Authenticator app, which is available for iOS and Android, and log in. Select the Security tab, then on the next page you'll see an option to select Two-Factor ...

Microsoft says it has been enforcing multifactor authentication (MFA) for Azure Portal sign-ins across all tenants since March 2025.

Starting in October, Microsoft will enforce multi-factor authentication (MFA) for all Azure resource management actions to protect Azure clients from unauthorized access attempts.

Legacy MFA is ending! Explore Microsoft’s new authentication policies and learn how to safeguard your systems against modern ...

How Turning on Two-Factor Authentication Works Two-factor authentication, which can be abbreviated as “2FA,” is offered by most major online accounts these days.

Generally, choosing to receive a one-time code is regarded as less secure compared with relying on authenticator apps ...

Two-factor authentication puts another layer in your digital identity to help companies know it’s really you and fend off bad actors.

Is Slack not sending authentication code? If two factor authentification not working is not working in Slack, see this post for the proven fixes.