Please update beta version have enhanced security via two step login security to my cell phone or using Microsoft authentication app.
Improve online login Outlook email security via two step verification codes to cell phone or using Microsoft authentication app. Prefer two step verification because it saves the need for the app.
Thanks for providing feedback and for using Outlook.com.
I did want to let you know that you are able to enable Two Step Verification for all of our Microsoft Account. This will protect all of the different Apps and services that are using your Microsoft Account.
You can find more details here – https://support.microsoft.com/en-us/help/12408/microsoft-account-about-two-step-verification
improve customer security