Five Eyes Issue First Joint Agentic AI Security Guidance: 30 Pages, 23 Risks, 100+ Mitigations — Fold Agents Into Existing Zero Trust Frameworks

CyberScoop·high signal

CISA, NSA, ASD, CCCS, NCSC-NZ, and NCSC-UK published 'Careful Adoption of Agentic AI Services' — the first joint guidance on securing AI agents. Identifies five risk categories: privilege escalation, design/configuration flaws, behavioral drift, structural cascading failures, and accountability gaps. Central recommendation: AI agents don't require new security disciplines — apply existing zero trust, defense-in-depth, and least-privilege frameworks. Warns agents in critical infrastructure already have dangerous autonomy levels with no governance.