TLS 1.0 and 1.1 retirement date in Office 365 to be October 15, 2020

TLS 1.0 and 1.1 retirement date in Office 365 to be October 15, 2020

Microsoft is moving all of their online services to Transport Layer Security (TLS) 1.2+ toprovide best-in-class encryption, and to ensure their service is more secure by default.

Key Points:

• Major: Retirement
• Timing: October 15, 2020
• Action: update or replace client devices as appropriate

How this affects your organization:

Once this change takes affect, all connections to Office 365 using the protocols TLS 1.0 and TLS 1.1 will no longer work.

What you should do to prepare:

Update or replace clients and devices that rely on TLS 1.0 and 1.1 to connect to Office 365, prior to October 15, 2020.

Additional information : https://docs.microsoft.com/en-us/microsoft-365/compliance/tls-1.0-and-1.1-deprecation-for-office-365?view=o365-worldwide