Security News > 2020 > August > Microsoft Enables TLS 1.3 by Default in Windows 10 Insider Preview

Microsoft this week announced that the Transport Layer Security 1.3 protocol is now enabled by default in Windows 10 Insider Preview builds, and that it will be rolled out to all Windows 10 systems.
With TLS 1.0 and TLS 1.1 considered insecure, exposing communications to a variety of attacks, including BEAST, CRIME and POODLE, tech companies such as Cloudflare, Google, Microsoft, Mozilla, and others have long been pushing for the retirement of older protocols and the broad adoption of TLS 1.3.
TLS 1.3, the tech giant says, is enabled by default in IIS/HTTP.SYS, and Microsoft Edge Legacy and Internet Explorer allow users to enable TLS 1.3 by heading to Internet options > Advanced settings.
The Chromium-based Microsoft Edge, on the other hand, does not leverage the Windows TLS stack and it can be configured using the Edge://flags dialog.
"Security support provider interface callers can use TLS 1.3 by passing the new crypto-agile SCH CREDENTIALS structure when calling AcquireCredentialsHandle, which will enable TLS 1.3 by default. SSPI callers using TLS 1.3 need to make sure their code correctly handles SEC I RENEGOTIATE," Microsoft also notes.
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