Microsoft deprecates Defender Application Guard for Office By Sergiu Gatlan November 27, 2023 "Microsoft is deprecating Defender Application Guard for Office and the Windows Security Isolation APIs, and it recommends Defender for Endpoint attack surface reduction rules, Protected View, and Windows Defender Application Control as an alternative." "Application Guard for Office is a security feature that works with Word, Excel, and PowerPoint for Microsoft 365 Apps, specifically catering to Windows 10 and Windows 11 Enterprise editions." https://www.bleepingcomputer.com/news/microsoft/microsoft-deprecates-defender-application-guard-for-office/