Exchange Online, SharePoint Online, and Microsoft Teams: April 2026 industry-wide DigiCert Global Root CA (G1) distrust [MC1282565]

Exchange Online, SharePoint Online, and Microsoft Teams: April 2026 industry-wide DigiCert Global Root CA (G1) distrust [MC1282565]

Message ID: MC1282565 [Introduction]To support industry-wide security improvements and modern cryptographic standards, browsers and platforms that follow Mozilla and Chrome trust stores will begin distrusting the DigiCert Global Root CA (G1) starting April 15, 2026. Microsoft has already migrated Microsoft 365 services…
General Availability: Microsoft Entra passkeys on Windows [MC1282568]

General Availability: Microsoft Entra passkeys on Windows [MC1282568]

Message ID: MC1282568 [Introduction] Microsoft Entra passkeys on Windows are now Generally Available, enabling phishing‑resistant, passwordless sign‑in to Microsoft Entra‑protected resources from Windows devices.The Public Preview of this capability was previously announced in MC1247893.Users can create device‑bound passkeys stored in…
Microsoft Purview eDiscovery: Naming and description fields will restrict certain special characters [MC1282562]

Microsoft Purview eDiscovery: Naming and description fields will restrict certain special characters [MC1282562]

Message ID: MC1282562 [Introduction]We’re making a change to the characters allowed in naming and description fields across Microsoft Purview eDiscovery. As part of ongoing security hardening efforts, this update strengthens input validation for eDiscovery cases, holds, searches, and review sets…