Monthly Archives: January 2025

Tenable broken plugin update takes Nessus agents offline

Posted on 2025-01-05 by guenni

[German]Tenable has published a support article pointing out a problem with its Nessus security solution caused by plugin updates. After the update, the Nessus agents are offline. Administrators must intervene manually to install an update and bring the Nessus agents … Continue reading →

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Windows 10: End of support in October 2025 – Million systems about to be replaced?

Posted on 2025-01-04 by guenni

[German]ESET says, currently 32 million systems with Windows 10 are still in use in Germany. The security company warns of a worst-case scenario, as support for Windows 10 will expire in October 2025. A "switchover" is being propagated. I am … Continue reading →

Posted in ios, Update, Windows | Tagged | 1 Comment

Operating system/Windows share (End of December 2024)

Posted on 2025-01-03 by guenni

[German]It's the beginning of 2025 and Statcounter's figures for operating system distribution on the desktop are available for the end of December 2024. What about Microsoft Windows share on the desktop? Windows 10 will no longer be supported after October … Continue reading →

Posted in browser, ios, Update, Windows | Tagged , , , | 1 Comment

Windows 11 24H2; Server 2025: msu update install error "Operation is not supported" explained

Posted on 2025-01-02 by guenni

[German]Microsoft has introduced the so-called Checkpoint Cumulative Updates for Windows 11 24H2 and Windows Server 2025. In September 2024, there were probably first reports of problems, users failed with the error "Operation is not supported". Microsoft has now updated a … Continue reading →

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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 ...

Need a Lenovo BIOS simualator?

Posted on 2025-01-02 by guenni

[German]A little tip for people who may need to document BIOS settings for Lenovo devices. Lenovo offers a BIOS simulator that allows you to retrieve all settings via the Internet and document them with a screenshot.

Posted in devices, Software | Tagged , , | 1 Comment

What is behind DKIM, SPF and DMARC?

Posted on 2025-01-01 by guenni

[German]Email security for Security Operations Center (SOC) teams. What is hidden behind terms such as DKIM, SPF and DMARC, which are used to secure email communication?

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Happy new Year 2025

Posted on 2025-01-01 by guenni

I wish this to all blog readers and, above all, good health and optimism in these times.

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