Microsoft warned today that it will permanently turn off Exchange Online basic authentication starting early January 2023 to improve security.

If you've implemented multi-factor authentication, you should disable the default basic authentication to make sure attackers can't exploit it.

Basic Authentication (aka proxy authentication) is an HTTP-based auth scheme apps use to send locally stored credentials in plain text to servers, endpoints, or online services.

Microsoft has an update for Office 365/Microsoft 365 Exchange Online Basic Auth retirement in the case of SMTP.

Microsoft this week again appealed to organizations using Exchange Online to move away from using "Basic Authentication," reminding them that support for it will get dropped, starting on Oct. 1, 2022.

Microsoft and Apple are working together to eliminate Basic Authentication use with the Mail app for organizations using the Microsoft Exchange Online e-mail service, according to a Thursday ...