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HTTPS certificate industry phasing out less secure domain validation methods

Posted by Chrome Root Program Team Secure connections are the backbone of the modern web, but a certificate is only as trustworthy as the validation process and issuance practices behind it.

CDF News DeskGoogle Security Blog11 Dec 2025, 1:30 am
CDF REPORT

Posted by Chrome Root Program Team Secure connections are the backbone of the modern web, but a certificate is only as trustworthy as the validation process and issuance practices behind it. Recently, the Chrome Root Program and the CA/Browser Forum have taken decisive steps toward a more secure internet by adopting new security requirements for HTTPS certificate issuers. These initiatives, driven by Ballots SC-080 , SC-090 , and SC-091 , will sunset 11 legacy methods for Domain Control Validation. By retiring these outdated practices, which rely on weaker verification signals like physical mail, phone calls, or emails, we are closing potential loopholes for attackers and pushing the ecosystem toward automated, cryptographically verifiable security.

This prevents unauthorized entities from obtaining a certificate for a domain they do not control. Without this check, an attacker could obtain a valid certificate for a legitimate website and use

How organizations are responding

This prevents unauthorized entities from obtaining a certificate for a domain they do not control.

Without this check, an attacker could obtain a valid certificate for a legitimate website and use

What remains unknown

The available reporting does not establish whether the issue is being actively exploited in the wild.

The available reporting does not establish who is behind the activity, if an attacker is involved.

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