​​Ambient and autonomous security for the agentic era​​ 

Microsoft announces a broad suite of AI-era security innovations at Ignite 2025 centered on making security ambient and autonomous across agents, apps, platforms, and cloud. Key launches include Microsoft Agent 365 (a control plane for discovering, governing, and securing AI agents), Foundry Control Plane for secure agent/app development at scale, a unified Security Dashboard for AI, and expanded Microsoft Purview controls for Copilot. The company also details Defender–GitHub Advanced Security integration, generally available Baseline Security Mode, Intune/Windows management and resilience enhancements, evolution of Microsoft Sentinel to power Security Copilot agents (now included for Microsoft 365 E5), new predictive shielding in Defender, and an expert-led Defender Experts Suite—advancing a vision of security as the core primitive in the agentic AI era.