Topic: tls certificates

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  • Rising Threat: More 1.1.1.1 Certificates Mis-Issued
    September 5, 2025
    95%

    Rising Threat: More 1.1.1.1 Certificates Mis-Issued

    Mis-issued TLS certificates for Cloudflare's 1.1.1.1 service raised security concerns, potentially allowing interception and manipulation of encrypted DNS traffic. Cloudflare confirmed twelve certificates were improperly issued by Fina CA, all now revoked with no evidence of malicious use. The er...

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  • 1.1.1.1 DNS Mis-issued Certificates Threaten Internet Security
    September 4, 2025
    95%

    1.1.1.1 DNS Mis-issued Certificates Threaten Internet Security

    Three mis-issued TLS certificates for the DNS resolver 1.1.1.1 were discovered, posing a serious security risk to encrypted DNS queries and potentially other Cloudflare services. The certificates, issued by a Microsoft-trusted authority, could have allowed interception of encrypted traffic on Win...

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Related Topics

incident response (64) Security Concerns (17) security incident (8) user impact (6) microsoft response (6) user protection (6) internal testing (5) dns security (3)