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RobertGreen
RobertGreen
June 4, 2026

Anthropic shared lessons from building three AI products: claude.ai uses gVisor temporary containers for general users, Claude Code uses OS-level sandboxing reducing permission prompts by 84%, and Claude Cowork uses VM-level isolation for enterprises. Key principle: prioritize environment-layer isolation. Prompt injection via phishing achieved 96% success in tests, driving ongoing security improvements.

Anthropic shared lessons from building three AI products: claude.ai uses gVisor temporary containers for general users, Claude Code uses OS-level sandboxing reducing permission prompts by 84%, and Claude Cowork uses VM-level isolation for enterprises. Key principle: prioritize environment-layer isolation. Prompt injection via phishing achieved 96% success in tests, driving ongoing security improvements.
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