Microsoft Defender Experts MDR

Microsoft Expands Hybrid Environment Protection and Adds Controls for Managing AI Agents

Microsoft has unveiled August 2026 updates to the Microsoft Security portfolio, including expanding the Defender Experts MDR service to cover data sources outside the Microsoft ecosystem and improving the management of identities, devices, and data. The company also added guidance for containing AI agents and increased Purview’s capacity for applying automatic classifications to 500,000 files per day.