Microsoft move to revoke trust in 20 root certificates could wreak havoc on sites

Tens of thousands of secure websites might start to display certificate errors to their visitors in January, when Microsoft plans to stop trusting 20 certificate authorities (CAs) from around the world.

The list of certificates that are scheduled to be removed from Microsoft’s Trusted Root Certificate Program belong to CAs run by private or state-owned organizations from the U.S., France, the Czech Republic, Japan, Denmark, Chile, Turkey, Luxembourg, Ireland, Slovenia and Brazil.

With their removal from Microsoft’s program, the CAs will also be removed from the certificate trust list in Windows that’s used by browsers such as Google Chrome, Internet Explorer and Microsoft Edge, as well as by email clients and other applications that support secure communications over SSL/TLS.

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