Five Eyes agencies issue first coordinated agentic AI security guidance

Five Eyes agencies just issued the first coordinated multi-nation security ruling on agentic AI. CISA, NCSC, and their Australian, Canadian, and New Zealand counterparts co-published guidance telling organizations to prioritize resilience over productivity when deploying autonomous agents. The threat model has shifted from model-level risks to system-level autonomy risks, which is a different problem category entirely. Teams shipping agent pipelines in production should read this as a compliance pre-signal, not a recommendation. Two other signals lock into that same pattern.