Microsoft Authenticator

What Microsoft Authenticator Does

Microsoft Authenticator helps protect online accounts with multi-factor authentication. It can confirm sign-in requests through the phone, generate time-based one-time passwords, and support passwordless access for compatible Microsoft accounts. The app is suited to people using Microsoft 365, workplace systems, school accounts, or other services that require an extra identity check.

Useful Sign-In Options

For Microsoft accounts, a sign-in can be approved from a notification instead of relying only on a password. Depending on the account and service, verification may use a device PIN or biometric check. Authenticator also works with many third-party accounts that use standard one-time passcodes, with codes available even when the phone has no data connection.

For Work and Personal Accounts

The app can hold several accounts in one place, making it practical for users who switch between personal, business, and education logins. Organizations may also use it as part of device registration and access policies for company resources. Its strongest fit is the Microsoft ecosystem, although its code-based verification supports services beyond Microsoft.

Ratings and Availability

Microsoft Authenticator is listed in the Business category and is developed by Microsoft Corporation. It has a rating of 4.66 out of 5 from more than 2.5 million reviews, with 100,000,000+ installs. These figures reflect broad use among both individual account holders and organizations that require additional sign-in protection.