Microsoft will send a security code to that new email address or phone number.Įnter the security code, and select Next. įollow the instructions to enter your email or phone number. Select Security contact info > Add security info. Go to the Security basics page and sign in with your Microsoft account. When you enter the code you received, we know that you’re really you and we can get you back into your Microsoft 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 address or phone number. Security contact info is an alternate email address or phone number that you add to your account. Keeping your Microsoft account security up-to-date Automatic replies are sent once to each sender. Use automatic replies to tell people you won't be responding to their messages right away. Tip: You don't need Wi-Fi or mobile data to use the Microsoft Authenticator app. Additionally, because the app stops running as soon as you close it, it won't drain your battery.