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Preparing for Exchange Online Basic Authentication Deprecation in September

Basic Authentication Deprecation in Exchange Online: A Comprehensive Guide for Cloud Architects
Introduction
As cloud-based services become increasingly popular, it is important for cloud architects to stay up to date on the latest security standards and best practices. One such security measure is the deprecation of Basic Authentication in Exchange Online. In this blog post, we will discuss the basics of Basic Authentication, how it is being deprecated in Exchange Online, and how cloud architects can prepare for the transition.

What is Basic Authentication?
Basic Authentication is a security protocol used by many applications and services, including Exchange Online. It allows users to authenticate themselves when accessing a service by providing their username and password. The username and password are then sent to the server, which verifies them and grants the user access to the service.

While Basic Authentication can be a convenient way to authenticate users, it is not considered to be a secure method of authentication. Because the username and password are sent in plaintext, they are vulnerable to being intercepted by malicious actors.

Why is Basic Authentication Being Deprecated in Exchange Online?
In an effort to improve the security of Exchange Online, Microsoft has announced that it will be deprecating Basic Authentication in September 2022. The move is part of Microsoft’s broader initiative to improve security across its services and products.

By deprecating Basic Authentication, Microsoft is hoping to reduce the risk of users’ credentials being intercepted and used for malicious purposes. Additionally, it encourages users to use more secure methods of authentication, such as Multi-Factor Authentication (MFA).

How Can Cloud Architects Prepare for the Deprecation of Basic Authentication?
To prepare for the deprecation of Basic Authentication in Exchange Online, cloud architects should begin to transition their users to secure authentication methods, such as MFA. Additionally, they should begin to review and update their authentication policies to ensure that they are up to date with the latest security standards.

Cloud architects should also review their existing authentication methods to ensure that they are secure and compliant with Microsoft’s security requirements. Additionally, they should review their existing authentication policies and procedures to ensure that they are secure and compliant with Microsoft’s security requirements.

Finally, cloud architects should ensure that their users are aware of the upcoming changes to authentication in Exchange Online and that they are trained on how to use the new authentication methods.

Conclusion
The deprecation of Basic Authentication in Exchange Online is an important step towards improving the security of Exchange Online. Cloud architects should begin to prepare for the transition by transitioning their users to more secure authentication methods, such as MFA, and by reviewing and updating their authentication policies and procedures. By doing so, cloud architects can help ensure a smooth transition for their users and reduce the risk of their credentials being intercepted and used for malicious purposes.
References:
Basic Authentication Deprecation in Exchange Online – September 2022 Update

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