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1.1.1.1 now supports post-quantum DNSSEC, all 2,420 bytes of it

This item is analysis rather than a single confirmed incident, so the reporting should be read as evidence of a trend, technique or risk pattern rather than proof that every organization in the sector has been compromised. The value of the story is in the pattern it describes and the evidence behind that pattern, not in…

Cloudflare Security•Sep 10, 2026, 1:00 PM UTC•3 min read
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What you need to know

What happenedSource reporting

This item is analysis rather than a single confirmed incident, so the reporting should be read as evidence of a trend, technique or risk pattern rather than proof that every organization in the sector has been compromised. The value of…

Who is affectedSource reporting

The significance for defenders depends on whether the organizations, technologies or attack path described in the reporting overlap with their own environment.

Exploitation statusCDF assessment

No active exploitation was identified in the current reporting reviewed.

Why it mattersCDF assessment

This article is research or analysis rather than a confirmed incident. Readers should separate observed data and researcher conclusions from any broader inference about their own environment.

What to do nowCDF guidance

Compare the research assumptions with your own technology and threat model.

THE NEWS

What happened

Verified reporting in clear, practical language.

1 1 1 1 now validates DNSSEC signatures using NIST’s post-quantum ML-DSA-44 algorithm. Here is how we manage 2,420-byte signatures and downgrade risks at scale. The significance for defenders depends on whether the organizations, technologies or attack path described in the reporting overlap with their own environment.

Compare the research assumptions with your own technology and threat model.

REFERENCES

Reference sources

Cloudflare Security
CYBERDELTAFORCE INTELLIGENCE

Reporting ends here. The sections below are CyberDeltaForce analysis and defender-focused interpretation.

CDF ANALYSIS

Why leaders should care

This article is research or analysis rather than a confirmed incident. Readers should separate observed data and researcher conclusions from any broader inference about their own environment.

DEFENDER ACTIONS

What security teams should do now

  • Compare the research assumptions with your own technology and threat model.
  • Validate whether the behaviors or exposures described exist internally.
  • Use the primary research source before making control changes.
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