Microsoft O365 Will Stop Support for TLS 1.0 and 1.1 in October of 2018
From Microsoft: “As of October 31, 2018, Office 365 will no longer support TLS 1.0 and 1.1. This means that Microsoft will not fix new issues that are found in clients, devices, or services that connect to Office 365 by using TLS 1.0 and 1.1.
Note This doesn't mean Office 365 will block TLS 1.0 and 1.1 connections. There is no official date for disabling or removing TLS 1.0 and 1.1 in the TLS service for customer connections. The eventual deprecation date will be determined by customer telemetry and is not yet known. After a decision is made, there will be an announcement six months in advance unless we become aware of a known compromise, in which case we may have to act in less than six months to protect customers who use the services.”
Once Office 365 deprecates support for these protocols, all communications to and from Office 365 servers will need to use TLS 1.2. See the list of Polycom products in the Impact and Risk section below that will no longer connect or be supported.
Devices will not register to any Skype for Business server if TLS is updated to TLS 1.2
If upgrading to TLS 1.2 using Skype for Business Servers (on-premises), additional devices listed below will no longer be able to register to Skype for Business or be supported. Compliance requirements such as Payment Card Industry Date Security Standard (PCI-DSS) will require that customers implement a more secure encryption protocol – TLS 1.1 or higher (TLS v1.2 is strongly encouraged) by June 30th 2018 in order to meet the PCI Data Security Standard (PCI DSS) for safeguarding payment data.
Last Update: 3/14/2022
Initial Public Release: 7/5/2018
Advisory ID: PLYGN18-07
|CX3000 Conference Phone||
|CX8000 Skype Room System||
No direct solution.
If using these products, continue to use them with Skype for Business Server 2015
(on-premises) with out updating to TLS 1.2
Microsoft Links: Deprecating support for TLS 1.0 and 1.1
- Technical reference details about encryption
- Preparing for TLS 1.2 in Office 365 and Office 365 GCC
- Certified Skype for Business Online Phones and what this means for Microsoft Teams
|1.1||11/9/2018||Updated information based on Microsoft changes|
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