Microsoft Edge and Internet Explorer will block SHA-1 signed TLS certificates from Feb 2017

Microsoft Edge

Last year, Microsoft shared some details about their plans for SHA-1 Deprecation Update for blocking SHA-1 signed TLS certificates. Today they shared more details about the plan. Both Microsoft Edge and Internet Explorer will block SHA-1 signed TLS certificates from February 2017. Also, from Windows 10 Anniversary Update, Microsoft Edge and Internet Explorer will no longer consider websites protected with a SHA-1 certificate as secure and will remove the address bar lock icon for these sites. Even though these sites will continue to work, they will marked non-secure for users.

This update will be delivered to Microsoft Edge on Windows 10 and Internet Explorer 11 on Windows 7, Windows 8.1 and Windows 10, and will only impact certificates that chain to a CA in the Microsoft Trusted Root Certificate program. Both Microsoft Edge and Internet Explorer 11 will provide additional details in the F12 Developer Tools console to assist site administrators and developers.

You can read more about SHA-1 deprecation plans on TechNet.

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