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Anthropic Leaks Mythos Model and Source Code [Model Behavior]
Anthropic, the AI company known for its focus on safety and responsibility, recently experienced two significant data leaks within a single week. The first incident, which occurred on March 26th, involved a misconfigured data store that exposed approximat
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Show Notes
Anthropic, a leader in the AI industry known for its 'safety-first' branding, has faced a challenging week following two separate accidental data exposures. On March 26, 2026, a security researcher found 3,000 internal files accessible without authentication, revealing 'Claude Mythos'—a next-generation model codenamed Capybara that sits above the current Opus tier. Just five days later, the company leaked 512,000 lines of source code for Claude Code. We discuss the technical and reputational impact of these leaks with security expert Chad Thompson, exploring how these incidents reshape the competitive AI landscape and Anthropic's internal security posture.
Topics Covered
- 🛡️ The 'Claude Mythos' (Capybara) model leak details
- 💻 Exposure of 512,000 lines of Claude Code source code
- 📊 Comparison between Mythos and Claude Opus 4.6 performance
- 🌐 Implications for Anthropic's 'responsible AI' brand identity
- 🔬 Staged rollout strategies and cybersecurity partner access
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