Security info is an alternate email address or phone number that you add to your account. If you forget your password, or if someone else is trying to take over your account, we send a security code to that alternate email or phone number. When you give the code back to us, we know that you’re really you and we can get you back into your Microsoft account.
- Sign in to your Security basics page with your Microsoft account.
- Select Update info.
- Select Add security info then follow the instructions to enter your email or phone number.
- We'll send a security code to that new email or phone number. Enter that security code, and then select Next. Your new security info will appear in your list.