BadSuccessor: Abusing dMSA to elevate privileges in Active Directory

Windows[German]Delegated Managed Service Accounts (dMSAs) have been introduced in Windows Server 2025. These are service accounts for the Active Directory (AD) that are intended to enable new functions. Security researchers have now discovered that by misusing dMSAs, attackers can take over any principal in the domain.

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Law enforcement officials seized Lumma Stealer infrastructure (May 2025)

Sicherheit (Pexels, allgemeine Nutzung)[German]Law enforcement officials seize Lumma Stealer infrastructure (May 2025)In a coordinated operation, US law enforcement officials have seized the infrastructure (C & C servers) of the Lumma infostealer and paralyzed its function. The malware is responsible for numerous cyberattacks on users involving the interception of information and almost 400,000 PCs were infected.

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FSAS Technologies suspends VMware partnership from June 2025

VMware[German]Following VMware by Broadcom's harsh treatment of customers and partners, FSAS Technologies (Fujitsu) is now suspending the VMware partnership from June 2025 onwards.

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Layoffs at Microsoft also affect veteran developers

Last week, I reported on an impending wave of redundancies at Microsoft. 6,000 employees (approx. 3 % of the workforce) are to go. It is now becoming clear that long-time developers will also be affected.

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Windows 11 24H2/Server 2025: Why is the May 2025 update KB5058411 over 4.3 GB in size?

Windows[German]On May 13, 2025, Microsoft released the cumulative security update KB5058411 for Windows 11 24H2 and Windows Server 2025 (24H2). This has the incredible size of 4368.9 MByte. This raises the question of what makes the update package so bloated? Spoiler: It's the AI stuff that Microsoft is including in the update.

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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...


Volkswagen hack via OTP bypass; access to personal vehicle data

Sicherheit (Pexels, allgemeine Nutzung)[German]A frustrated buyer of a used VW vehicle was unable to register for Connected Car because the data was sent to the previous owner. So he took a closer look and was able to determine the server access data through OTP bypassing. He then used the chassis number to obtain the vehicle history and the previous owner's personal data. The incident took place in India – but I'm not sure whether the VW app "My Volkswagen" doesn't handle the whole thing in exactly the same way.

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Windows Subsystem for Linux is now Open Source

Windows[German]At the BUILD 2025 developer conference, Microsoft announced that it had released WSL (Windows Subsystem for Linux) as open source and is being celebrated by developers. The hope from Redmond is that software developers can now contribute to WSL and create their own versions.

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Windows 10: Out-of-Band Update KB5061768 for Bitlocker issue (May 19, 2025)

Windows[German]With the Windows 10 22H2 update of May 13, 2025, there was the problem that numerous systems got stuck in WinRE with a request for the Bitlocker recovery key. When the key was entered, some systems entered a boot loop. Microsoft has released an out-of-band update on May 19, 2025, which should fix the problems.

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Windows 11 24H2: Update KB5058411 fails with error 0x800f081f

Windows[German]A quick question to the blog readers as to whether the installation of the May 2025 update KB5058411 for Windows 11 24H2 went through. I have received a request from readers asking if I have any information about the KB5058411 error. It is a rather generic error that can have many causes. It can often only be solved by Inplace Upgrade.

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Digital sovereignty: Microsoft arbitrarily blocks access to e-mail/cloud (Prosecutor Internation Criminal Court, Chinese university institution

[German]Short article of the type "Digital sovereignty: have you finally heard the shot". Microsoft has blocked the email account of the chief prosecutor of the International Court of Justice – due to sanctions imposed by the US government under Trump. The same applies to a Chinese genome company and with a Chinese university.

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