Launched

Microsoft 365: New Trust Center settings to block file opens using insecure protocols

Why it matters: In preview

New settings in Trust Center will allow users to restrict or allow file opens using FTP/HTTP protocols and fallback to FrontPage Remote Procedure Call (FPRPC) protocol.

Target August CY2025Cloud Worldwide, GCC, GCC High, DoDPlatform DesktopSource updated 2025-10-28

Affected: Excel, Microsoft 365, PowerPoint, Word

View at Microsoft →