OpenClaw 安全加固完全指南（2026）

This guide presents a comprehensive 2026 security hardening strategy for OpenClaw against threats like GhostClaw—malware disguised as OpenClaw Skills that exfiltrates developer credentials and environment files. It proposes a five-layer defense-in-depth architecture: anomaly detection with rate/domain rules, JSONL audit logging for full traceability, a tiered permission system (trusted/limited/isolated), Docker sandbox isolation for dangerous operations, and Ed25519 digital signature verification of Skill packages. Each layer can be enabled independently, with practical configuration examples and emergency response procedures.