'After one month, most partners have each found hundreds of critical- or high-severity vulnerabilities': Anthropic claims Mythos has found over ten thousand major security vulnerabilities across 'the most systemically important software in the world'
Anthropic's Mythos Preview has reportedly identified over 10,000 high- and critical-severity vulnerabilities in less than two months. Many organizations using the tool have experienced a significant increase in their bug-finding capabilities. However, some experts express skepticism about the tool's unique effectiveness compared to existing systems.
- ▪Mythos Preview uncovered over 10,000 vulnerabilities, with Cloudflare finding 2,000 bugs.
- ▪Independent validation confirmed 90% of assessed findings as real.
- ▪The bottleneck has shifted from discovery to verification and patching.
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| Original publisher | TechRadar |
| Canonical URL | https://www.techradar.com/pro/security/after-one-month-most-partners-have-each-found-hundreds-of-critical-or-high-severity-vulnerabilities-anthropic-claims-mythos-has-found-over-ten-thousand-major-security-vulnerabilities-across-the-most-systemically-important-software-in-the-world |
| Publication time | Mon, 25 May 2026 11:35:00 +0000 |
| Retrieval time | 2026-05-25T11:37:36.700Z |
| Last seen | 2026-05-25T11:37:44.922Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
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| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | fDrZq_WJ34AT |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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Pro Security 'After one month, most partners have each found hundreds of critical- or high-severity vulnerabilities': Anthropic claims Mythos has found over ten thousand major security vulnerabilities across 'the most systemically important software in the world' News By Sead Fadilpašić published 25 May 2026 Anthropic illustrates the first months of Mythos Preview When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: Blue Planet Studio/Shutterstock) Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Anthropic reported Mythos Preview uncovered over 10,000 high‑ and…
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