MC590144 – Microsoft Purview Information Protection moving to AES256-CBC mode for encryption of email and Office files. (archived)
check before: 2023-06-30 Product: eDiscovery, Exchange, Microsoft 365 Apps, OneDrive, Outlook, Purview Communication Compliance, Purview Information Protection, SharePoint Platform: Android, iOS, Mac, mobile, Online, US Instances, Web, Windows Desktop, World tenant Status: Rolling out Change