September 30, 2022

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Microsoft will disable TLS 1.0/TLS 1.1 transport protocols in September

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Microsoft will disable TLS 1.0/TLS 1.1 transport protocols in September



 

Microsoft will disable TLS 1.0/TLS 1.1 transport protocols in September.

Microsoft announced that starting September 13, 2022, Internet Explorer and EdgeHTML (the rendering engine for the WebView control) will disable TLS 1.0 and 1.1 by default.

The work of disabling TLS 1.0 and 1.1 was proposed as early as 2020, but when the new coronavirus broke out around the world and a large number of developers worked from home, Microsoft could only postpone the time to phase out TLS 1.0 and 1.1 .

 

 

Transport Layer Security (TLS) is used to provide confidentiality and data integrity between two communicating applications.

The protocol consists of two layers: TLS Record and TLS Handshake.

 

It is worth noting that Microsoft said that it will not deprecate TLS 1.0 and TLS 1.1 support (because some old websites need compatibility), but it is disabled by default, and you can choose to turn TLS 1.0/1.1 support back on through group policy.

Individuals can also turn it back on for personal devices by navigating to Tools > Internet Options > Advanced in Internet Explorer.

 

For the Chromium-based Microsoft Edge browser, TLS 1.0 and TLS 1.1 are disabled by default starting with Microsoft Edge version 84.

The SSLVersionMin policy that allows enabling older protocol versions has been removed starting with Microsoft Edge version 91 .

 

While these legacy protocols can still be re-enabled as needed, it is recommended that all organizations retire TLS 1.0 and TLS 1.1 as soon as possible.

The new version of the TLS protocol (the latest version is TLS 1.3) supports more modern encryption techniques and is widely supported in modern browsers.

 



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