Nominated for European Cybersecurity Blogger Awards 2021

[German]Just a short note – the blogs here – especially my German language IT blog  has been nominated for the European Cybersecurity Blogger Awards 2021. I have now been informed that I have reached the finals – whether there will be an award, I don't know – I feel honored, but I'm also relaxed about it – we will wait and see.

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WSUS Survey 2020: Where and how it will be used

Windows Update[German]In enterprise environments, WSUS is frequently used under Windows Server for update management. But how do administrators use WSUS and what do they manage with it? I have the results of a survey from the end of 2020, which I have intended to present here on the blog for a long time.

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Windows 10 V1909: Update KB5003169 blocks Teams/Outlook/OneDrive login

Windows[German]Update KB5003169 dated May 11, 2021 for Windows 10 version 1909 probably causes collateral damage. After installation, logging into Microsoft 365 desktop client apps such as Microsoft Teams, OneDrive for Business, and Microsoft Outlook may fail. You may see error message 80080300 or "We ran into a problem. Reconnecting…" when authenticating or logging into Teams. In the KB article  for the update, Microsoft recommends restarting or using the web apps for the Office module in question. (via)

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Windows 10 1809/1909: Preview Updates (May 20, 2021)

Windows[German]As of May 20, 2021 (3rd week of the month, C-Week), Microsoft has released several optional cumulative (preview) updates for Windows 10 version 1809 and 1909, as well as their Windows Server counterparts. Here's an overview of the updates in question.

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Chrome crashes on Windows 10 since May 20, 2021

Windows[German]Since yesterday, May 20, 2021, users of the Chrome browser on Windows 10 have been suffering from sudden crashes worldwide. The funny thing is that Google released Chrome 90.0.4430.212 back on May 10. Until yesterday, there were no major reported issues with this version of the browser. But now something has happened to the browser, causing crashes to pile up. Update: Google has released a fix.

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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 ...


Edge Edge 90.0.818.66

Edge[German]Microsoft has released the update to Edge 90.0.818.66 on May 20, 2021. According to the release notes, the update fixes various bugs and performance issues vulnerabilities. The browser should update itself automatically.

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WSUS 3.0 SP2: No longer usable after October 31, 2021

Windows[German]Brief information for administrators who use a WSUS 3.0 Service Pack 2 to manage updates in corporate environments. This package can no longer be used to distribute updates after October 31, 2021, because synchronization will fail after that date.

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Windows 10 20H2 ready for broad deployment

Windows[German]After recently removing the last upgrade blockers (see the blog post Windows 10 V2004/20H2: All upgrade blocks removed (May 2021)), Microsoft is now releasing the brakes regarding the distribution of this feature update. The operating system upgrade is now to be offered to all users.

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Internet Explorer 11: Support in Windows 10 ends on June 15, 2022

Windows[German]A brief information for Windows users who still use Internet Explorer 11 as their browser. The desktop version under Windows 10 will be taken out of support in certain variants on June 15, 2022, and will no longer receive any updates. Microsoft is now completely relying on Chromium Edge as the browser in Windows 10. Here is some more information about it.

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Patch, because Exploit for Windows http-sys vulnerability CVE-2021-31166 available

Windows[German]Another small security note for administrators of Windows systems who have not yet installed the May 2021 security updates or had to uninstall them due to problems. The May 11, 2021 updates closed the http-sys vulnerability CVE-2021-31166. Since the weekend, an exploit to exploit the vulnerability is now available. This one triggers a BlueScreen on the Windows target machine. I assume that there could be remote attacks on the vulnerability soon.

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