497299 – Microsoft 365: New Trust Center settings to block file opens using insecure protocols

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*For this entry exists the more relevant or more recent entry MC1130392

check before: 2025-08-01

Product:

Microsoft 365 Apps

Platform:

US Instances, Windows Desktop, World tenant

Status:

Rolling out

Change type:

Links:

MC1130392

Details:

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.

Change Category:
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Scope:
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Release Phase:
General Availability, Preview

Created:
2025-07-03

updated:
2025-10-01

Public Preview Start Date

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Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Please, look at the most relevant linked item for details

explanation for non-techies**

Imagine you're managing a library, and you want to ensure that only safe and secure paths are used to access the books. In the digital world, Microsoft 365 is like this library, and the files are the books. Traditionally, files could be accessed using various paths, some of which are not very secure, like FTP or HTTP. These are like old, creaky doors that might let in unwanted guests.

Microsoft 365 is introducing new settings in the Trust Center, which is like the security office of our library. These settings allow you to decide whether to keep these old doors open or to lock them and use more secure entrances. The idea is to restrict or allow file access using these older, less secure methods, and to decide if you want to use a backup method called FrontPage Remote Procedure Call (FPRPC), which is like having a secret passageway that you can use if all else fails.

By managing these settings, you can ensure that only the safest paths are used to access your files, much like ensuring that only the main, secure entrances are used to enter the library. This helps protect the integrity of your files and ensures that unauthorized access is minimized. Just like a library that updates its security measures to protect its books, Microsoft 365 is updating its settings to enhance file security.

** AI generated content. This information must be reviewed before use.

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change history

DatePropertyoldnew
2025-10-01RM StatusIn developmentRolling out

Last updated 4 weeks ago ago

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