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AI Security

Daybreak vs. Mythos: 2026 Is the Year the Frontier Labs Entered Defensive Security

OpenAI's Daybreak and Anthropic's Mythos both bet that frontier models can find and fix vulnerabilities at scale. The discovery race is real — but the bottleneck, the cost curve, and the winning strategy all point the same direction: be model-agnostic.

Jun 24, 20266 min read
AI Security

Patch the Planet: What AI-Generated Fixes Actually Mean for Open-Source Maintainers

OpenAI's Patch the Planet, co-founded with Trail of Bits, wants to move widely-used open-source projects from findings to fixes. The ambition is right — but it shifts the bottleneck to maintainer review, patch provenance, and the trust of machine-authored code.

Jun 24, 20266 min read
AI Security

OpenAI's Daybreak: An Honest Assessment of Codex Security, GPT-5.5-Cyber, and the Find-Validate-Patch Loop

Daybreak is the most complete attempt yet to turn a frontier model into a vulnerability-finding-and-fixing system. We break down what it gets right, where the verification and economics still bite, and how it fits alongside a purpose-built engine.

Jun 24, 20267 min read
AI Security

GPT-5.5-Cyber and Trusted Access: The Dual-Use Governance Questions Defenders Should Be Asking

OpenAI's Daybreak ships a permissive, offensive-capable model behind a tiered Trusted Access program and a wave of government partnerships. Here's what model-risk, procurement, and security-policy teams should demand before they rely on it.

Jun 23, 20266 min read

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