The April 2026 Windows update cycle includes several changes that matter to IT administrators.
Tag Archive for: security
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Microsoft LiteBox: a library OS for secure sandboxing and running Linux apps on Windows
Microsoft has released LiteBox, an open-source Library Operating System (Library OS) designed to strengthen security through application sandboxing. LiteBox...
Microsoft Sentinel Logstash output plugin: DCR-based log ingestion
Microsoft has released a new version of the Logstash output plugin for Microsoft Sentinel in public preview. The plugin...
Exchange 2016/2019 ESU Period 2: paid security updates until October 2026
Microsoft announced on April 15, 2026, a second paid security update period—called "Period 2"—for Exchange Server 2016 and 2019....
New Windows RDP phishing warning: Caution: Unknown remote connection
The April 2026 Patch Tuesday updates add anti-phishing protection to the Windows Remote Desktop client (mstsc.exe). The change —...
Microsoft 365 Copilot security: Purview DLP, oversharing controls, and dashboard analytics
Microsoft released new security and governance controls for Microsoft 365 Copilot, introducing Data Loss Prevention (DLP) policies that inspect...
Microsoft Entra SCIM 2.0: Now with bidirectional provisioning
Microsoft introduced new SCIM 2.0 APIs for Microsoft Entra. The APIs now support bidirectional provisioning, which allows external identity...
Entra ID Conditional Access Optimization Agent: AI-driven policy gap detection
Microsoft's Conditional Access Optimization Agent uses AI to continuously scan your Microsoft Entra ID environment for policy gaps and...
Microsoft Entra March 2026: Passkeys GA, backup preview, and Hybrid Security Fix
Microsoft's March 2026 Entra update promotes passkey authentication to general availability, introduces a built-in tenant backup feature in public...
Mail-Advanced.ReadWrite permissions required to change sensitive email properties in Exchange Online via Graph API
Microsoft announced a breaking change to the Microsoft Graph API affecting Exchange Online: from December 31, 2026, applications that...
Windows 11 Insider builds: Administrator Protection, NPU monitoring, console updates
Microsoft released new preview builds across three Windows Insider channels. The Dev and Beta channels (Builds 26300.8142 and 26220.8138,...
Windows Kerberos RC4 deprecation: what will break in Active Directory and how to fix it
Starting in April 2026, Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without...
What is Microsoft Defender for Cloud Apps?
Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) solution that delivers comprehensive security for Software...
New SMTP DANE and MTA-STS connector modes in Exchange Online
Exchange Online now lets you choose, per outbound connector, whether SMTP DANE and MTA-STS are enforced opportunistically, mandatorily (for...
New in Microsoft Defender: AI-powered triage agents, new dashboard, automated hardening, voice call monitoring in Teams
Microsoft announced several new Defender features at the RSA Conference 2026, most of which are in preview and have...
Using OpenID Connect (OIDC) for external MFA in Entra ID
Microsoft has introduced external Multi-Factor Authentication (MFA) as the new, fully integrated OpenID Connect (OIDC)-based way to connect third-party...
Microsoft Sentinel introduces AI-powered automation and delegated access at RSAC 2026
At RSA Conference 2026, Microsoft announced a comprehensive set of updates to Microsoft Sentinel, its cloud-native Security Information and...
Update Windows Secure Boot DB certificates with Group Policy and PowerShell
Microsoft's original Secure Boot certificates from 2011 begin expiring in June 2026. Windows devices that still rely on these...
Microsoft adds passkeys to Entra ID registration campaigns
Starting April 2026, Microsoft Registration Campaigns in Entra ID will support Passkeys (FIDO2) as an authentication method, enabling organizations...
How to view effective settings in Microsoft Defender for Endpoint
Microsoft Defender for Endpoint now includes an effective settings feature, generally available as of March 2026, that shows which...
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