Microsoft 365 Basic Auth Update

Microsoft has resumed its plan to disable all Basic Authenticaiton protocols in Microsoft 365/Office 365.

 

The change will now take place on October 1st, 2022.

 

Basic Authentication is an outdated industry standard, and threats posed by Basic Auth have only increased in the time since Microsoft originally announced they were making this change.

 

Even though Microsoft announced they were putting the work on hold, they didn’t stop improving security. Back in June they provided an update that they had already begun to disable Basic Auth for tenants not using it.

 

Today, we have more news on how to prepare for this important change.

 

Beginning early 2022, as Microsoft begins to roll out the changes necessary to support this effort, theywill begin disabling Basic Auth for some customers with usage on a short-term and temporary basis.

 

During this time all clients and apps that use Basic Auth in the selected tenants will be affected, and they will be unable to connect. Any client or app using Modern Auth will not be affected. Users can switch to other clients (for example, use Outlook on the Web instead of an older Outlook client that does not support Modern Auth) while they upgrade or reconfigure their client apps.

 

Finally on October 1st, 2022 all basic authentication protocols will be disabled for all Microsoft 365/Office 365 tenants.

 

We have made a number of previous posts about this and sent previous communications to clients still using basic auth.

 

If you have not already taken action on this and still need to do so, we urge you to reach out to our helpdesk as soon as possible to be sure there are not interruptions for you or your team once these cutoffs hit.