Claude · AI Beat

26 May 2026 · AI Beat Desk

Five Days from First Bug to Root Shell

Apple's macOS 26.5 security notes credit Calif and Anthropic Research for CVE-2026-28952, completing the public lifecycle of a kernel exploit that a small team built with Claude Mythos in five days. It's the first publicly disclosed macOS kernel exploit to survive Memory Integrity Enforcement on M5 silicon, and the speed at which a two-person team crossed that line says something about how AI changes the economics of high-end security research.

18 Apr 2026 · AI Beat Desk

Claude 4.7's Quiet Migration Tax

Claude Opus 4.7 shipped April 16 with an unchanged sticker price, but the real migration cost is higher than the headline: a new tokenizer quietly inflates token counts by 20–35% on code and technical text, and three commonly-used sampling parameters—temperature, top_p, top_k—now return a 400 error instead of being silently ignored.