Simon Willison Endorses Glasswing Restrictions: 'Security Risks Really Are Credible' — Cites Kernel and curl Maintainer Alarm

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Simon Willison wrote a detailed analysis on April 7 backing Anthropic's decision to restrict Claude Mythos, calling it 'a reasonable trade-off.' His most striking evidence: Linux kernel maintainer Greg Kroah-Hartman reports AI vulnerability submissions have shifted from 'slop' to genuine high-quality findings within the last month, and curl creator Daniel Stenberg is now spending 'hours per day' handling AI-generated security reports. Willison frames this as an industry-wide reckoning requiring massive investment in defensive security infrastructure.