Microsoft Authenticator is a security app that enables secure sign-ins for online accounts using multi-factor authentication or passwordless methods

Download Microsoft Authenticator from the Google Play Store or Apple App Store then follow the installation instructions provided by your device

After opening the app add your Microsoft or non-Microsoft accounts by following the prompts to enable secure sign-in options

Key features include multi-factor authentication passwordless login support for multiple account types cert-based authentication and optional access permissions

Customize your experience by managing optional permissions like location camera and storage access through the app settings

Save favorite content by adding multiple accounts to the app which keeps them readily accessible for secure sign-ins

Share content securely by using the app's multi-factor authentication to verify your identity before accessing shared resources

Access detailed information about your accounts and explore more content through the app's account management interface

The app requires optional permissions like location and camera access which can be managed through the device's settings

Check for updates through your device's app store to ensure you have the latest version for optimal performance