*For this entry exists the more relevant or more recent entry MC590144
check before: 2023-08-01
Product:
Exchange, Microsoft 365 Apps, Outlook, Purview Communication Compliance, Purview Information Protection, SharePoint
Platform:
Android, iOS, Online, US Instances, Web, Windows Desktop, World tenant
Status:
Rolling out
Change type:
Feature update
Links:

Details:
Microsoft 365 Apps, Exchange Online, and SharePoint Online will begin to use AES256 in cipher block chaining (CBC) mode by default when emails and documents are encrypted with Microsoft Purview Information Protection.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
Semi-Annual Enterprise Channel, Current Channel, Current Channel (Preview), Semi-Annual Enterprise Channel (Preview), Monthly Enterprise Channel
Created:
2023-05-31
updated:
2023-09-07
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changes*
Date | Property | old | new |
2023-09-07 | RM Status | In development | Rolling out |
2023-06-01 | RM Description | Today, when protecting content Microsoft Information Protection uses AES in electronic codebook (ECB) mode to encrypt Office files and emails. Starting in July, M365 Apps, Exchange Online, and SharePoint Online will begin to use cipher block chaining (CBC) mode by default. | Microsoft 365 Apps, Exchange Online, and SharePoint Online will begin to use AES256 in cipher block chaining (CBC) mode by default when emails and documents are encrypted with Microsoft Purview Information Protection. |
2023-06-01 | RM Product Tags | Exchange, Outlook, Excel, SharePoint, PowerPoint, Word, Azure Information Protection, Microsoft Information Protection | Azure Information Protection, Word, Microsoft 365 app, Microsoft Information Protection, Exchange, Outlook, Excel, SharePoint, PowerPoint |
2023-06-01 | RM Title | Microsoft Purview Information Protection uses cipher block chaining mode for encrypted content by default. | Microsoft 365 apps: Microsoft 365 Apps and Services update to AES256-CBC for encrypting emails and files with Purview Information Protection |
2023-06-01 | RM Release | July CY2023 | August CY2023 |
*starting April 2022
Last updated 3 weeks ago