To turn two-factor verification prompts back on for your devices. From the Additional security verification page, select Restore multi-factor authentication on previously trusted devices. The next time you sign in on any device, you'll be prompted to perform two-factor verification.
Sign in using the Microsoft Authenticator app - Azure AD You should keep two step verification turned on to help provide additional security for your account. If I keep two-step verification turned on for my account, do I have to approve two notifications? No. Signing in to your Microsoft account using your phone also counts as two-step verification, so there is no second approval required. Microsoft Account Gets More Secure - The Official Apr 17, 2013 Here's the easiest way to protect your gaming accounts Microsoft offers a full complement of two-step verification options, including email, SMS, or an authenticator app that will apply across all of your Microsoft services including Xbox Live. How To Enable Microsoft Two Factor Authentication
Apr 17, 2013
Protect your Microsoft account with two-step verification Mar 11, 2020
Two step verification and Xbox one - Windows Central Forums
Enable Two Step Verification For Microsoft Account Two-step verification procedure for owners of Microsoft Accounts has been officially announced by the Redmond-based software company. The new system, which is entirely optional, will help bolster the security of users’ accounts by including an additional verification process featuring codes. Using Microsoft Two-Factor Authentication with your Xbox Apr 19, 2013 Set up multi-factor authentication in Microsoft 365 Make a note of the code that appears on your mobile device, enter the code on your computer in the box under Step 2, and then choose Verify. In the boxes under Step 3, enter a backup phone number, such as your office number, choose Next, and then choose Done. Multi-factor authentication provides more security for your business. Explore - microsoft.com