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Anthropic's unreleased AI model chains browser and OS exploits · 2 sources tracked

By PulseAugur Editorial · [3 sources] ·

Anthropic has detailed how an unreleased internal AI model, identified as Claude Mythos Preview, discovered and chained together vulnerabilities across multiple operating systems and browsers. The model successfully created exploit chains for Chrome, Safari, Android, Windows, and Linux, with one proof-of-concept achieving remote code execution on macOS within seconds. While Anthropic claims these exploits were chained using only initial prompting, all identified vulnerabilities have since been patched by the respective companies, and no live attacks utilizing these specific chains were observed. AI

IMPACT Demonstrates advanced AI capabilities in identifying and exploiting software vulnerabilities, potentially accelerating security research and defense.

RANK_REASON Research publication detailing AI model capabilities in cybersecurity.

Read on Mastodon — fosstodon.org →

AI-generated summary · Google Gemini · from 3 sources. How we write summaries →

Anthropic's unreleased AI model chains browser and OS exploits · 2 sources tracked

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Research
Research publication detailing AI model capabilities in cybersecurity.
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3 independent sources
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safety, model release
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13 days old
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COVERAGE [3]

  1. Mastodon — fosstodon.org TIER_1 English(EN) · sigint ·

    🚨🐛 SIGINT // Cybersecurity Watch — 2026-10-30 An unreleased Anthropic model found zero-days across Chrome, Safari, Android, Windows and Linux and chained them i

    🚨🐛 SIGINT // Cybersecurity Watch — 2026-10-30 An unreleased Anthropic model found zero-days across Chrome, Safari, Android, Windows and Linux and chained them into working exploits, a sign of AI-speed offense. https:// thehackernews.com/2026/10/anth ropics-unreleased-ai-model-cha…

    LINKS thehackernews.com/…/anthropics-unreleased… thehackernews.com/…/anth
  2. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Anthropic says an unreleased internal model found flaws in Chrome, Safari, Android, Windows and Linux, then chained them into working exploits with only initial

    Anthropic says an unreleased internal model found flaws in Chrome, Safari, Android, Windows and Linux, then chained them into working exploits with only initial prompting. One proof of concept popped Calculator on a stock Mac within seconds of a page loading. All five chains are …

    LINKS thehackernews.com/…/anthropics-unreleased… thehackernews.com/…/anth
  3. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Anthropic published research in which an unreleased model, Claude Mythos Preview, chained flaws across Chrome, Safari, Android, Windows, and Linux, and no live

    Anthropic published research in which an unreleased model, Claude Mythos Preview, chained flaws across Chrome, Safari, Android, Windows, and Linux, and no live attack used the chains. Its macOS Chrome chain used four linked flaws to reach one-click remote code execution from a de…

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