In this article I would present a discussion on implementing HTTP authentication in Web API with code examples to illustrate the concepts discussed.

Phasing out Basic Authentication is, to be honest, a sensible decision. One of the older web authentication protocols, it uses cleartext usernames and passwords to control access to services.

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

Microsoft is now planning to disable Basic Authentication use with its Exchange Online service sometime in the 'second half of 2021,' according to a Friday announcement.

Microsoft announced that Basic Authentication will be turned off in Exchange Online for Exchange ActiveSync (EAS), POP, IMAP, and Remote PowerShell starting October 13, 2020.