Machine Heart

Jul 10, 2026 · Information Security

Detect Insider Agents in Multi-Agent Networks with XG-Guard’s Explainable GAD

XG-Guard introduces a novel unsupervised graph anomaly detection framework that jointly encodes sentence- and token-level features of LLM agents, leverages theme-based anomaly scoring and covariance-based score fusion to pinpoint malicious agents in multi-agent systems, providing fine-grained explanations and enabling automatic communication isolation.