The three layers of agentic AI security: A defense-in-depth architecture for autonomous agents

Oscar Wahlberg explains that autonomous AI agents require a defense-in-depth security model spanning three distinct layers: infrastructure, network, and a governing control plane. The infrastructure layer establishes hardware-rooted trust through attestation, confidential computing, and secure boot to verify agent identity; the network layer enforces dynamic, zero-trust policies that restrict agent communication to explicitly authorized endpoints, preventing lateral movement and data exfiltration.