As organizations scale autonomous AI, a dangerous cross-industry trend has emerged i.e. handing probabilistic engines direct access to deterministic workflows. Drawing on enterprise threat observations and the OWASP Top 10 for Agentic Applications, this session introduces the ATM Framework (Autonomy, Tool Use, Memory). Security leaders will learn to enforce "Least Agency" by implementing privacy-preserving guardrails against unvalidated API execution. This production-ready, operational blueprint empowers enterprises to manage interconnected risks by deploying battle-tested architectures to prevent breaches without slowing AI innovation.