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Google forgot to renew one of its TLS certificates, leading to service disruption Saturday for people using Gmail through third-party email clients.
The Mozilla Foundation plans to reject new digital certificates issued by the China Internet Network Information Center (CNNIC) in its products, but will continue to trust certificates that already exist.
Microsoft has blacklisted a subordinate CA certificate that was wrongfully used to issue SSL certificates for several Google websites. The action will prevent those certificates from being used in Google website spoofing attacks against Internet Explorer users.
After a security enthusiast discovered a loophole that allowed him to register a valid SSL certificate for Microsoft's live.fi domain, he tried to responsibly disclose the issue. But instead of thanks he got locked out of his email, phone, Xbox and online storage accounts.
Microsoft released an update to blacklist an SSL certificate for one of its domain names that was issued to an unauthorized third party.