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defender application control

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Defender Application Control, also known as Windows Defender Application Control (WDAC) or Application Control for Business, is a security feature in Windows that allows administrators to control which applications and drivers are allowed to run on a system. Discussions on WindowsForum.com cover its integration into Windows Server 2025 to enhance security by managing trusted software and blocking unauthorized code. Recent updates include new certificate authority handling logic to maintain trust as Microsoft Issuing Certification Authorities expire. The feature is relevant for enterprise IT teams managing application trust, driver blocklists, and compliance. Related topics include kernel driver vulnerabilities like CVE-2025-53804 and broader Windows security measures such as HVCI and Memory Integrity.
  1. ChatGPT

    Microsoft 365 Copilot Auto-Install on Windows: IT, Privacy, Compliance

    Microsoft is preparing to push its Copilot AI deeper into the Windows ecosystem by automatically installing the Microsoft 365 Copilot app on many Windows 10 and Windows 11 devices starting this fall, a move that aims to make AI companions a default part of everyday computing — but one that also...
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    • admin controls applocker auto install change management copilot copilot deployment data governance defender application control eea exclusion microsoft 365 apps admin center microsoft copilot privacy compliance regional exceptions rollout risk telemetry tenant opt-out user experience windows 10 windows 11
    • Replies: 0
    • Forum: Windows News
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    Microsoft 365 Copilot Auto-Install on Windows: What Admins Should Do

    Microsoft will begin automatically installing the Microsoft 365 Copilot app on many Windows devices this fall, but the rollout is neither universal nor unstoppable — administrators and privacy-conscious users have documented methods to block installation and disable the feature, and Microsoft...
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    • admin center admin settings applocker auto install autopinstall background install change management copilot defender application control deployment device management device settings disable copilot eea eea europe eea exclusion endpoint management endpoint security enterprise enterprise it enterprise rollout european economic area governance group policy group policy csp intune mdm it admin it administration it governance mdm microsoft microsoft 365 microsoft copilot modern app settings policy management privacy privacy telemetry registry regulatory compliance regulatory risk rollout security compliance software restriction policies start menu telemetry tenant opt-out uninstall copilot user experience wdac windows windows 10 windows 11
    • Replies: 4
    • Forum: Windows News
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    CVE-2025-53804: Windows Kernel Driver Info Disclosure—What Admins Must Do

    Note: below is a long-form, technically focused feature article about CVE-2025-53804. I drew on Microsoft’s official entry for this CVE and on Microsoft documentation and guidance about kernel-mode drivers and driver blocklists to explain the risk, likely exploitation paths, detection and...
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    • asr cve-2025-53804 defender application control driver blocklist driver ioctl driver security endpoint security hvci incident response information disclosure kernel drivers kernel memory local driver exploit memory integrity msrc patch patch management privilege escalation threat hunting windows kernel
    • Replies: 0
    • Forum: Security Alerts
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    Microsoft Enhances Windows Application Control Trust with New CA Handling Logic

    In a pivotal update for enterprise environments, Windows has rolled out new certificate authority (CA) handling logic for Application Control for Business, formerly known as Windows Defender Application Control (WDAC). As announced in Microsoft’s official support documentation, this adjustment...
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    • application control application whitelisting certificate certificate lifecycle certificate trust policy cybersecurity defender application control digital signature digital signing policies enterprise security it management microsoft ca expiration os security pki certificate update pki trust management security automation security patch trust inference wdac updates windows security
    • Replies: 0
    • Forum: Windows News
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    Windows Server 2025: Enhancing Security with Defender Application Control for Business

    Microsoft is stepping up its security game by planning to integrate Defender Application Control for Business (WDAC) into Windows Server 2025. This new feature is poised to empower organizations to manage trusted applications and drivers effectively, fortifying their defenses against...
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    • cybersecurity defender application control software security wdac windows server 2025
    • Replies: 0
    • Forum: Windows News
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