Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

Find out what to do when you receive a “Call us overprotective” message when signing in to Xbox.com.

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

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Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...

These steps will help guide you when filling out the account recovery form.

Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.

Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.

This article answers common questions about Microsoft Authenticator. Select the headings below to see more information.

Get an error message or error code when making a purchase on Xbox? Find out what they mean.