How to enable Azure Active Directory security defaults in Office 365

Prerequisites
  • Applies to: Administrator
  • Difficulty: Moderate
  • Time Needed: Approximately 30 minutes
  • Tools Needed: Office 365® Global Administrator access

Administrators looking for a simple solution to secure their Office 365 tenant have the option of turning on security defaults for their organization. Security defaults make the following changes to your organization’s tenant:

  • Unifies the Multi-Factor Authentication (MFA) registration experience for all users.
  • Enforces MFA for users and administrators.
  • Blocks legacy authentication methods such as Internet Message Access Protocol (IMAP), Simple Mail Transfer Protocol (SMTP), and Post Office Protocol (POP3).
  • Blocks requests made by clients that don’t use modern authentication.
  • Requires extra authentication when accessing highly privileged areas such as the Office 365 Admin Center and Azure® Portal.
  • Requires the Microsoft® Authenticator app for MFA.
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