Microsoft Authenticator is a subscription-based application designed for secure two-factor authentication across various platforms. This IT tool allows users to sign in to services like Outlook and OneDrive without the need for passwords, utilizing their mobile devices instead. By confirming logins with a PIN or fingerprint, it adds an extra layer of security and helps protect against unauthorized access. The app supports time-based one-time password (OTP) codes, ensuring that online accounts are safeguarded effectively.

Compatible with a wide range of organizations from small businesses to enterprises, Microsoft Authenticator integrates seamlessly with numerous applications, including Microsoft 365 and Active Directory. It is available on major mobile platforms such as iOS and Android, and offers documentation for user training. This makes it a versatile choice for anyone looking to enhance their online security with modern authentication methods.