Forensic Summary
Anthropic has published detailed documentation of its sandboxing architecture across Claude.ai, Claude Code, and Claude Cowork, including disclosure of a previously identified credential exfiltration vector via the api.anthropic.com/v1/files endpoint. The writeup covers process-level isolation technologies including gVisor, Seatbelt, Bubblewrap, and full VM approaches, and candidly acknowledges security gaps that were missed. This transparency is notable for the agentic AI space, where sandbox documentation is typically sparse and trust is difficult to calibrate.
Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/anthropic-documents-sandbox-escape-risks-and-credential-exfiltration-vectors-in/
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