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MC435255/KB5017811: Reminder: Disabling Transport Layer Security (TLS) 1.0 and 1.1 by default for Internet Explorer and EdgeHTML

As previously communicated, Microsoft has disabled Transport Layer Security (TLS) 1.0 and 1.1 by default for Internet Explorer and EdgeHTML starting today, September 20, 2022. This is the rendering engine for the WebView control.

Please note, Microsoft is not deprecating TLS 1.0 and TLS 1.1 support. It is being disabled by default, and organizations have the option to turn it back on through Group Policy if needed for compatibility reasons. Users have the option turn it back on for their personal devices by navigating to Tools > Internet Options > Advanced in Internet Explorer.

When will this happen

Starting September 20, 2022.

Learn more

Message ID: MC435255/KB5017811
Published: 20 September 2022
Updated: 20 September 2022
Platform: Web, World tenant, Windows Desktop, mobile

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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