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Anthropic's Claude Mythos AI finds cracks in cipher designs

By PulseAugur Editorial · [1 sources] ·

Anthropic's AI model, Claude Mythos Preview, has identified significant vulnerabilities in two cryptographic designs. The model found a weakness in the HAWK-256 post-quantum signature scheme, reducing its estimated security strength considerably. Additionally, Mythos developed a new technique that accelerates a known attack on a reduced-round version of AES-128 by hundreds of times. Anthropic emphasized that these findings do not impact current production systems and have undergone rigorous verification. AI

IMPACT Demonstrates AI's potential in advanced cryptanalysis, potentially accelerating the discovery of vulnerabilities in security systems.

RANK_REASON AI model identifies vulnerabilities in cryptographic designs, detailed in a research context. [lever_c_demoted from research: ic=1 ai=1.0]

Read on dev.to — Claude Code tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic's Claude Mythos AI finds cracks in cipher designs

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Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
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Tool
AI model identifies vulnerabilities in cryptographic designs, detailed in a research context. [lever_c_demoted from research: ic=1 ai=1.0]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
paper, safety
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AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
46 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — Claude Code tag TIER_1 English(EN) · RAXXO Studios ·

    Claude Mythos Just Found Real Cracks in Two Cipher Designs

    <ul> <li><p>Anthropic said Claude Mythos Preview helped derive a real key-recovery attack against the HAWK-256 post-quantum signature scheme, cutting its estimated attack cost from roughly 2 to the 64th power operations down to 2 to the 38th</p></li> <li><p>Mythos separately foun…

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