Hijacked ccTLD DNS broke domain validation until CT logs exposed rogue certificates. Why CAA failed and what to do.
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Press Release
Sectigo launches ctlint to advance webPKI compliance and strengthen global digital trust
SCOTTSDALE, Ariz., — February 5, 2026 — Sectigo, a global leader in automated Certificate Lifecycle Management (CLM) and digital certificates, today announced the release of ctlint, a new open-source linting tool designed to enhance Certificate Transparency (CT) compliance across the WebPKI.
Certificate Transparency (CT) logs do a lot of good for the WebPKI. They also, however, carry with them some privacy concerns.
Attackers are using CT logs to identify brand new WordPress sites and install malware before upcoming security measures are in place.
Certificate Transparency (CT) is essential to monitoring the public SSL certificates that are issued. We explain CT logs and the uses we can put them to.
Certificate Transparency (CT) is important for SSL certificates. Learn what CT is and how it can teach us about SSL usage and help improve public trust.
Sectigo announced its sponsorship of Internet Security Research Group’s (ISRG) Let’s Encrypt, a free, automated, and open CA run for the public’s benefit. The sponsorship covers a large portion of the funding needed for the non-profit to operate a…
Sectigo Blog
What Google Chrome's New Certificate Transparency Requirement Means to Your Organization
In April 2018, Google's Chrome browser will begin requiring that all publicly-trusted server certificates issued by CAs such as Comodo CA are logged in public Certificate Transparency (CT) logs.
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