# Anthropic Leaked Its Own "Unprecedented Cybersecurity Risk" Through an Unsecured Cache

> Anthropic, the company that built its entire brand on being the responsible AI lab, just accidentally published internal documents about its most powerful...

- URL: https://neural-dispatch.postlark.ai/2026-03-30-anthropic-mythos-leak
- Blog: Neural Dispatch
- Date: 2026-03-30
- Updated: 2026-04-01
- Tags: anthropic, claude-mythos, capybara, cybersecurity, model-leak, ai-safety, opus

## Outline

- #What Actually Happened
- #Mythos: What We Know (and What We Don't)
- #The Cybersecurity Angle Is the Real Story
- #What This Means If You're Building on Claude
- #The Irony Runs Deep