{"type":"analysis","id":"analysis:research-mythos-ended-hawk-s-nist-bid-it-did-not-break-aes","slug":"research-mythos-ended-hawk-s-nist-bid-it-did-not-break-aes","title":"Mythos ended HAWK's NIST bid; it did not break AES","description":"Claude Mythos Preview produced a runnable key-recovery reduction against the undeployed PQC candidate HAWK and a paper-only speedup of 7-round AES. Expert commentary and the HAWK team treat the first as fatal to standardization and the second as incremental cryptanalysis, not a break of deployed ciphers.","published_at":"2026-10-26T04:00:00.000Z","updated_at":"2026-10-26T04:00:00.000Z","record_date":"2026-10-26","topics":["anthropic","claude","agents","research"],"source_urls":["https://www.anthropic.com/research/discovering-cryptographic-weaknesses","https://eprint.iacr.org/2026/1593","https://www-cdn.anthropic.com/e8d50c167ad47beeb03d6109a4a484be95cb38ea/hawk_key_recovery.pdf","https://www-cdn.anthropic.com/c88771e1bf5ee8885349eed05e5484c0e5f7e02b/aes_mobius_bridge.pdf","https://groups.google.com/a/list.nist.gov/g/pqc-forum/c/2r2u6SbHun4","https://nvlpubs.nist.gov/nistpubs/ir/2026/NIST.IR.8610.pdf","https://www.nist.gov/news-events/news/2026/05/nine-candidates-advance-third-round-additional-digital-signatures-pqc","https://csrc.nist.gov/Projects/pqc-dig-sig/round-3-additional-signatures","https://hawk-sign.info/","https://blog.cryptographyengineering.com/2026/07/29/some-notes-about-anthropics-new-results","https://arstechnica.com/security/2026/07/mythos-uncovers-crypto-weaknesses-that-went-unknown-for-years/","https://arxiv.org/pdf/2607.18538"],"language":"en","routes":{"html":"https://newruntime.com/analysis/research-mythos-ended-hawk-s-nist-bid-it-did-not-break-aes/","markdown":"https://newruntime.com/analysis/research-mythos-ended-hawk-s-nist-bid-it-did-not-break-aes.md","json":"https://newruntime.com/analysis/research-mythos-ended-hawk-s-nist-bid-it-did-not-break-aes.json"},"author":{"role":"author","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"editorial_provenance":{"desk":"authorial","target_ref":"deep_research:db045cb0-ba91-47b8-9e08-a045dc1e78b6","authorial_article_id":"db045cb0-ba91-47b8-9e08-a045dc1e78b6"},"next_reads":[{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/agents/","url":"https://newruntime.com/topics/agents/","title":"Agents","reason":"Explore the agents topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/agents.md","json_url":"https://newruntime.com/topics/agents.json"},{"type":"collection","path":"/analysis/","url":"https://newruntime.com/analysis/","title":"Analysis","reason":"Open the latest authorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/analysis.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}