Four suspects arrested in the UK over Co-op, Marks & Spencer and Harrods hack

Sicherheit (Pexels, allgemeine Nutzung)[German]The UK has a problem with young cyber criminals. British police have arrested four people between the ages of 17 and 20, one of whom is a woman. Those arrested are suspected of carrying out the hack on the British retailers Co-Op, Marks & Spencer (M&S) and Harrods. The companies were unable to work for weeks following a ransomware attack.

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WmiPrvSE.exe causes high CPU load due to Dell Alienware Command Center

Windows[German]I'm posting a finding here in the blog that I came across on the web earlier this year. A user was plagued by a high CPU load under Windows, which was ostensibly caused by the Windows process WmiPrvSE.exe. At the end of the day, it turned out that the Dell Alienware Command Center was responsible for the problem.

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WSUS sync should work again – July 2025 issue fixed

Update[German]Brief information for administrators in corporate environments who use Windows Server Update Services (WSUS) to distribute updates. The service has been unable to synchronize with Microsoft endpoints since 9 July 2025. This problem should be fixed, Microsoft has fixed something on the server side.

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Patchday: Microsoft Office Updates (July 8, 2025)

Update[German]On July 8, 2025 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for Microsoft Office 2016, as well as the C2R variants (Office 2016-2021 and 365) and other products. This month, serious vulnerabilities in Office were closed. Below you will find an overview of the available updates.

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WSUS has synchronization problems (July 9, 2025)

Update[German]Since July 9, 2025 (C.E.T.) German blog readers reporting, that their Windows Server Update Services (WSUS) are failing to sync with Microsoft's update servers. The endpoint from Microsoft isn't reachable and WSUS can't download the July 2025 security updates from Microsofts update server. Addendum: It's fixed.

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Patchday: Windows Server Updates (July 8, 2025)

Windows[German]On July 8, 2025 (second Tuesday of the month, Patchday at Microsoft), various cumulative updates were released for the supported versions of Windows Server. Below I have extracted the provided updates along with some details for these Windows Server versions (from Windows Server 2012 to 2025).

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Patchday: Windows 10/11 Updates (July 8,  2025)

Windows[German]On July 8 (second Tuesday of the month, Patchday at Microsoft), Microsoft released cumulative updates for the still supported client operating system versions of Windows 10 and Windows 11. Here are some details about these updates, which are intended to fix vulnerabilities and problems.

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Microsoft Security Update Summary (July 8, 2025)

Update[German]Microsoft released security updates for Windows clients and servers, Office and other products on July 8, 2025. The security updates fixes 128 vulnerabilities (CVEs), one were classified as 0-day.  The following is a compact overview of the updates released on Patchday. More details about some vulnerabilities are following in discrete blog posts.

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Hyper-V vTPM certificates: VM export and migration

Windows[German]A TMP platform module (vTPM) is required for the virtualization of Windows 11 or Windows Server 2025. The Hyper-V virtualization platform included in Windows allows vTPN and other options to be configured. However, the problem is when such a VM is moved and the vTPM certificates break. I have just come across an article from Microsoft that deals with this issue.

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Excel freezes and slow opening/closing due to Trend Micro

[German]Users are complaining that since the June 2025 updates, Microsoft Excel has been causing problems and freezes on startup or is very slow to open and close. The cause may be Trend Micro version 6.7.3981/14.3.1311.

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