ISTARI has launched an AI security managed operations service with Cranium AI for enterprise clients managing AI systems across their organisations. Delivered by ISTARI and built on Cranium AI's platform, the service is designed to identify, govern, certify and protect AI systems throughout their working life, including models, agents, datasets, tools and third-party AI products. The launch comes as companies face growing pressure to show that AI governance operates in day-to-day practice rather than existing only in internal policy documents, reflecting a wider shift as AI adoption moves from limited testing to a board-level issue. Designed as a single managed offering, the service puts one provider in charge of operational work including discovery and inventory, governance and compliance operations, adversarial testing and certification, runtime guardrail operations, AI vulnerability management and reporting. The service is organised around a governed use case, assessing the combination of users, models, agents, memory, datasets, tools and connected systems involved in a specific piece of AI-enabled work. Each use case is risk-tiered and moved through Cranium's AI Trust Loop: Discover, Observe, Govern, Secure and Prove. Certification steps are aligned with frameworks including the EU AI Act, NIST AI RMF and ISO/IEC 42001. Cranium's platform monitors prompts, responses and agent actions against configured policy in real time, while ISTARI's analysts handle policy tuning, alert triage and other decisions requiring human oversight. Clients can use ISTARI for strategic advice or allow the firm to carry