# Anthropic Built a Model That Finds Zero-Days. Over 99% Are Still Unpatched.

- slug: anthropic-built-a-model-that-finds-zero-days-over-99-are-still-unpatched
- date: 2026-04-15
- category: Artificial Intelligence

Two frontier AI labs just released cybersecurity models within a week of each other. Both are real. Both found thousands of vulnerabilities in production software. Over 99% are still unpatched. The defensive window is not a metaphor.

---