The one-time password (OTP) doesn’t require you to be connected to a network, and it won’t drain your battery. This timer is so you never have to use the same time-based one-time password (TOTP) twice and you don’t have to remember the number. Either approve the notification sent to the Microsoft Authenticator, or enter the one-time password (OTP) generated by the app. The one-time passwords (OTP codes) have a 30 second timer counting down.

When logging in with multi-factor authentication, you’ll enter your password, and then you’ll be asked for an additional way to prove it’s really you.

Multi factor authentication (MFA) or two factor authentication (2FA) provides a second layer of security. Getting started with multi-factor authentication You also have additional account management options for your Microsoft personal, work or school accounts. Use Microsoft Authenticator for easy, secure sign-ins for all your online accounts using multi-factor authentication, passwordless, or password autofill.