Mozilla tightens rules for certificate authorities to improve web security

📅 30 June 2026 at 13:00 UTC📰 Cyber InsiderView original source ↗

Mozilla has released version 3.1 of its Mozilla Root Store Policy (MRSP), introducing new requirements aimed at improving transparency and oversight across the public Web PKI. The updated policy, which takes effect on July 1, 2026, focuses on stronger Certification Authority (CA) documentation and enhanced audit reporting. While previous Root Store Policy revisions focused on … The post Mozilla tightens rules for certificate authorities to improve web security appeared first on CyberInsider.

🤖 AI BriefingAuto-generated threat analysis

🔍Threat Overview

Mozilla has updated its Root Store Policy (MRSP) version 3.1, introducing stricter requirements for Certification Authorities (CA) documentation and audit reporting to improve transparency and oversight across the public Web PKI, aiming to reduce certificate misissuance risk.

⚙️Technical Details

Affected Systems

Firefoxother software that relies on Mozilla's trusted certificate list

Attack Vectors

TLS certificates issued by included Certification AuthoritiesCertificate Authority operations and security practices

💥Impact Assessment

Severity: medium

Who Is at Risk

Software relying on Mozilla's trusted certificate list, including Firefox users

🛡️Recommended Actions

1Verify CA documentation for compliance with MRSP 3.1 requirements

2Implement enhanced audit reporting and control procedures

3Monitor CA operations and security practices for potential misissuance

📦Affected Products

Firefoxother software that relies on Mozilla's trusted certificate list

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