Basic authentication in Microsoft 365 will soon be disabled automatically, regardless of usage, with the exception of SMTP Auth.
Organizations should prepare for the upcoming changes by learning how to block it on their own.
To block basic authentication, Security Defaults must be enabled in the Microsoft 365 Message Center and the modern Exchange Online module V2 must be used to connect remotely to the tenant.
If Basic authentication has been disabled and users and apps are unable to connect, it must be re-enabled before Dec 31, 2022.
After that date, it cannot be re-enabled.
Basic authentication in Microsoft 365 will soon be disabled automatically, and organizations should prepare for the upcoming changes by learning how to block it on their own. Basic authentication requires each app, service or add-in to pass credentials with each request, and modern authentication, which is based on ADAL and OAuth 2.0, offers a more secure method of authentication. To block basic authentication on your own, you must enable Security Defaults in the Microsoft 365 Message Center, and you will need to use the modern Exchange Online module V2 to connect remotely to your tenant.
Basic authentication in Microsoft 365 – how and why to disable it?
If Basic authentication has been disabled in your tenant and users and apps are unable to connect, you have until Dec 31, 2022, to re-enable the affected protocols. Follow the re-enablement process in this blog . Once that date has passed, you (or support) cannot re-enable Basic authentication in your tenant.
Deprecation of Basic authentication in Exchange Online
To check the basic authentication status, Login to Microsoft 365 admin center. Click Settings–> ‘Org Settings.’ Select ‘Modern authentication ‘ present under the ‘Services‘ tab. Based on the message displayed, you…
It’s Time to Disable Basic Authentication in Office 365