Modern Authentication, also referred to as OAuth 2.0, is a lot more than just requiring a username and password for authentication. What is Microsoft 365 Modern Authentication? I will go over how to check if your organization is using any of these Legacy Authentication Protocols later in this article. To speed this along, Microsoft has started deprecating Legacy Authentication Protocols in 365. Microsoft is urging organizations to do this as soon as possible. With that said, the push to turn off Legacy Authentication protocols is in full swing. This makes it very easy to steal credentials. Also, most credentials are stored on the device they are used on. Contributing to this is the fact that a lot of usernames and passwords are not encrypted when being sent for authentication. In today’s world, this is problematic because these usernames and passwords can be easily compromised. Basic Authentication is simply referring to an app, client, or protocol that is only passing a username and password for authentication.īasic Authentication has been the sole form of authentication for most applications and protocols for many years. Legacy Authentication is often referred to as Basic Authentication. To understand MFA a little more, let me explain Legacy Authentication and Modern Authentication, and how it is important to have a successful MFA implementation. It is always a good idea to have more than one authentication method for any platform you use. These days, just a password is not the most secure, even with complex passwords. Multi-Factor Authentication, aka MFA, allows you to secure user logins by adding multiple authentication methods.
What is Microsoft Modern Authentication?.And finally, I will walk you step-by-step through how to setup MFA in Office 365. I will also walk you through checking to see if Legacy Authentication is being used in your tenant and how to turn it off. In this guide, I will discuss what MFA is, what Legacy Authentication is, and what Modern Authentication is.
Multi-Factor authentication (MFA) is the most recommended way to secure your Microsoft 365 tenant. This is the complete guide to Microsoft Office 365 MFA.
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