Misissued

The number of mis-issued 1.1.1.1 certificates grows. Here’s the latest.

by Dan Goodin
September 4, 2025
I.T. Today
3 min read

Cloudflare on Thursday acknowledged this failure, writing: We failed three times. The first time because 1.1.1.1 is an IP certificate and our system failed to alert on these. The second time because even if we…

Mis-issued certificates for 1.1.1.1 DNS service pose a threat to the Internet

by Dan Goodin
September 3, 2025
I.T. Today
3 min read

The certificates are a key part of the Transport Layer Protocol. They contain the private key used to digitally sign domains to certify they rightfully belong to the entity claiming ownership or control. The private…