![]() Moderators need to step it up and start enforcing rules. Disapointing to once again be reminded what a minority they are in this sub. And just leave 2fa enabled for the Admin account? ThanksĮdit: here is the solution Turn on MFA with security defaults or Conditional Access - Microsoft 365 Business Premium | Microsoft Learn Thanks to those who gave helpful replies. Is there some way to prevent this change from taking effect either globally or on a user by user basis?Įdit: Once this change takes effect (MS turns on default security settings) can i simply go to Microsoft 365 admin center > Users > Active users > Select the user > Manage multifactor authentication > Select the user > Disable multi-factor authentication. We are a 10 person company and don't even tell our employees their email/office passwords as they are stored in their desktop PCs. This appears to be microsoft wanting to enable 2FA. A common question is what happens to the user experience if you are currently only on classic authentication and change to modern? If you enable modern authentication, you don’t need to rebuild the Outlook profile – the next connection will simply change to Bearer*.The security defaults setting for your Company Name tenant will be turned on by. An image providing a review of security defaults. In the example below, security defaults was applied, and a link is provided to manage it again if you change your mind. Finally, the summary screen will show which policy you’ve applied before exiting. If the value is Clear*, you are using basic authentication. An image demonstrating how to turn on MFA using security defaults. If the value is Bearer*, you are using modern authentication. In the General tab, there is a column called Authn. In the Notification Area (beside the clock) on Windows, hold CTRL and right-click the Outlook sync icon, then select Connection Status. This can be exported to JSON or CSV too.Īdditionally, in Outlook for Windows, you can view whether or not you are connected using legacy or modern authentication. You can use Azure Active Directory’s Sign-In reports to see basic authentications against your tenants to understand and prepare for support changes. The reasons Microsoft advocate against continued support of legacy authentication are because it does not support MFA (which is by far the simplest way of protecting your users from account breaches), and because automated attacks such as password spray are more susceptible to it. Set - CasMailbox – SmtpClientAuthenticationDisabled $ True ![]() Note that SMTP AUTH (basic authentication) is already affected: since 2019, new tenants have had it disabled, customers who didn’t use it had it disabled, and if you used it, it would be disabled at the tenant level but supported at the mailbox/user level: This has since been changed to the second half of 2021, but when it does happen, if the application attempting to authenticate does not support the modern authentication protocols, you will not be able to authenticate. Of these, POP3, IMAP, and Remote PowerShell will all get OAuth support. This means the apps and services themselves are not trusted to handle credentials your (hopefully) trusted authority like Azure AD deals with the credentials and issues a token.īasic authentication for the protocols EWS, EAS, POP3, IMAP4, and Remote PowerShell was set to be disabled on 13 October 2020. When you use modern authentication, your users authenticate interactively with a web dialogue that belongs to your identity provider (Azure AD), rather than a dialogue the OS (Windows) or application (Outlook, Thunderbird) itself owns. In the context of Microsoft 365 and Azure Active Directory, which handles Microsoft 365’s authentication, these are protocols such as ADAL and OAuth. ![]() Protocols that support MFA are described as modern authentication. The term legacy authentication doesn’t refer to one particular protocol, but rather any that do not support Multi-Factor Authentication (MFA). Security Defaults are a group of best-practice security settings, and one of note is the disablement of all legacy authentication, which itself has been off in Exchange Online and SharePoint Online, by default, since August 2017. ![]() Since October 2019, Microsoft has enabled Security Defaults by default in new Microsoft 365 tenants.
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