Verify that you haven't explicitly disabled TLS 1.2 on these platforms.īy default, earlier versions of Windows (such as Windows 8 and Windows Server 2012) don't enable TLS 1.2 or TLS 1.1 for secure communications by using WinHTTP.
Later versions of Windows and Windows Server. These operating systems natively support TLS 1.2 for client-server communications over WinHTTP: Update the Windows OS and the default TLS that you use for WinHTTP Preparing for TLS 1.2 in Office 365 and Office 365 GCC - Microsoft 365 Compliance. For more information about how to update a web proxy, check with the vendor of your web proxy solution.įor more information, see the following articles: Make sure that your web proxy supports TLS 1.2. 
For more information, see the Microsoft Edge release notes for Stable Channel. We recommend that you use the new Microsoft Edge browser (based on Chromium).
Make sure that your web browser has the latest updates. Make sure that applications and PowerShell (that use Microsoft Graph) and Azure AD PowerShell scripts are hosted and run on a platform that supports TLS 1.2. NET Framework installation to support TLS 1.2. Enable TLS 1.2 for applications and services that communicate with Azure AD. 
Identify and reduce you dependency on the client apps and operating systems that don't support TLS 1.2. Update Windows and the default TLS that you use for "WinHTTP". Guidelines for enabling TLS 1.2 on clients How do you maintain a secure connection to Azure Active Directory (Azure AD) and Microsoft 365 services? You enable your client apps and client and server operating system (OS) for TLS 1.2 and modern cipher suites. (This date has been postponed from June 30th, 2021 to January 31st, 2022, to give administrators more time to remove the dependency on legacy TLS protocols and ciphers (TLS 1.0,1.1 and 3DES).)Įnable support for TLS 1.2 in your environment TLS 1.0, 1.1 and 3DES Cipher suite in public instances starting January 31, 2022. government instances starting on March 31, 2021. TLS 1.0, 1.1 and 3DES Cipher suite in U.S. The services are being deprecated on the following dates: To improve security when users interact with our cloud services. To follow the latest compliance standards for the Federal Risk and Authorization Management Program (FedRAMP). These protocols and ciphers are being deprecated for the following reasons: Applications that are integrated with Azure AD. How this change might affect your organizationĭo your applications communicate with or authenticate against Azure Active Directory? Then those applications might not work as expected if they can't use TLS 1.2 to communicate. 3DES cipher suite (TLS_RSA_WITH_3DES_EDE_CBC_SHA). To improve the security posture of your tenant, and to remain in compliance with industry standards, Microsoft Azure Active Directory (Azure AD) will soon stop supporting the following Transport Layer Security (TLS) protocols and ciphers:
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