Revoking vulnerable Windows Boot Managers

Windows is making updates to address a known security vulnerability exploited by BlackLotus to bypass Windows Secure Boot. Windows updates release April 9, 2024, and later, include new controls which provide the manual ability to deploy the “Windows UEFI CA 2023” certificate to the Secure Boot DB, as well as revoke trust for the “Microsoft Windows Production PCA 2011” signing certificate.   
 

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Reducing Windows 10, version 22H2 monthly LCU package size

The security and quality update packages that Windows 10 receives every month are becoming smaller and more efficient.  
 

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Classic Teams Timelines for end of support and end of availability

Classic Teams will end support on July 1, 2024, and availability on July 1, 2025. Users will see informational banners starting April 2024 and experience non-dismissible dialogs post-availability end. Users should update their OS and address installation issues to prepare for the transition.

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The April 2024 Windows non-security preview update is now available

The April 2024 non-security preview update is now available for Windows 11 and all supported versions of Windows 10. Information about the contents of this update is available from the release notes, which are accessible from the Windows 11 and Windows 10 update history pages. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. To be informed about the latest updates and releases, follow us on X @WindowsUpdate.

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“Investigation priority score increase” Policy to be retired

The “Investigation priority score increase” policy in Microsoft Defender for Cloud Apps will be retired between June and July 2024 due to high false positives and limited value. Administrators should use the Advanced Hunting query as an alternative.

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Update to the latest Company Portal for all platforms

All users must update to the specified minimum Company Portal app version for their platform by July 10, 2024, to maintain access. Automatic updates will handle this for most users; others must update manually. Classic Conditional Access policies need migration. Users should be notified to prepare.

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Plan for Change: Updates to Basic Mobility and Security URLs and user interface

In mid-May 2024, Basic Mobility and Security will undergo updates including UI changes and new URL locations. The device list UI will be updated, and the URL will change to https://admin.microsoft.com/Adminportal/Home#/IntuneDevices. APNs certificate management will move to the Microsoft Azure portal, and activating Basic Mobility and Security will shift to the Microsoft Purview overview page. Organizations should inform IT admins and update documentation and firewalls accordingly.

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Plan for Change: Migrate classic Conditional Access policies

Azure AD Graph is retiring, and admins must migrate classic Conditional Access policies to Microsoft Graph by July 10, 2024. Failure to migrate will prevent new device enrollment and compliance via the Company Portal and Intune apps across various platforms.

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Register for the Graph API webinar on April 23

Learn how you can use Graph API to access information on Windows known issues and product lifecycle. Microsoft has heard your feedback and now gives you faster, programmatic access to Windows update data. To keep you up to date, we invite you to join us on April 23 for a webinar on Windows known issues and product lifecycle in the Graph API.

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New steps have been released to mitigate Kerberos signature validation vulnerabilities

The April 2024 security update released on April 9, 2024 addresses a security vulnerability in the Kerberos PAC Validation Protocol. New Take Action steps have been released as part of KB5037754 to prevent bypassing PAC signature validation security checks added in KB5020805: How to manage Kerberos protocol changes related to CVE-2022-37967.

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I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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