Chicago IT Support & Cyber Security | Forward Technologies

Chicago-based Forward Technologies delivers IT support and cyber security to businesses in the Chicago area and nationwide.

  • Home
  • Services
    • Outsourced IT Support
    • DMARC Email Security
    • Development
      • Web Development & Facelifts
      • CustomView: Plugin for WordPress
    • Data Recovery Service
    • PPC Marketing Services
    • SEO Services
  • Email Security
    • SPF Basics
    • DKIM Basics
    • DMARC Basics
    • Email Security Consulting
  • Data Recovery Service
  • Blog
  • Contact Us

12 Rogue Certificates for Cloudflare’s DNS Raise Global Security Alarm

September 6, 2025 by Edward Silha

Cartoon-style illustration of a giant padlock labeled “1.1.1.1 DNS” with broken certificate chains, symbolizing compromised trustOn Wednesday, researchers uncovered three improperly issued TLS certificates for Cloudflare’s 1.1.1.1 DNS service, encrypted DNS lookup used by millions. The concern was clear: anyone with those credentials could impersonate Cloudflare’s resolver, decrypt user traffic, or redirect queries to malicious sites.

Further investigation revealed the breach was worse than initially thought. Cloudflare confirmed that Fina CA—a Microsoft‑trusted certificate authority, had in fact issued a total of twelve unauthorized certificates for 1.1.1.1 since February 2024. [Read more…]

Filed Under: Blog, Cybersecurity, Tech In General Tagged With: 1.1.1.1, CA accountability, certificate authority, certificate mis-issuance, Certificate Transparency, Cloudflare, DNS over HTTPS, DNS over TLS, DNS security, encryption, Fina CA, internet trust, Microsoft root store, Microsoft trust, PKI, TLS certificates, TLS mis-issuance, web security

Social Media

  • Facebook
  • GitHub
  • LinkedIn
  • Periscope
  • Twitter

Forward Technologies
747 N LaSalle
STE 500B
Chicago, IL 60654
(312) 715-7806

Copyright © 2025 — Forward Technologies • All rights reserved. • Privacy Policy •