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Written by Max Zeshut
Founder at Agentmelt
The practices, architectures, and controls that protect AI agents from exploitation, data leakage, and unauthorized actions. Key threat vectors include prompt injection (manipulating agent behavior through malicious inputs), data exfiltration (tricking agents into revealing sensitive information), excessive permissions (agents with more access than needed), and supply chain attacks (compromised tools or plugins). Securing AI agents requires defense-in-depth: input validation, output filtering, least-privilege access, action approval gates, audit logging, and continuous monitoring.
A support agent has read access to customer records but an attacker crafts a message that tricks the agent into including another customer's data in its response. Proper security architecture prevents this through: PII detection on outputs, customer-scoped data access, and anomaly detection that flags unusual data access patterns.