Category Archives: Security

Ransomware infection in University Hospital Düsseldorf not responsible for death of a woman

[German]New development in view of the death of a patient in the environment of the ransomware infestation in the University Hospital Düsseldorf. The public prosecutor's office has discontinued its investigations against the unknown hackers because of the death, as there … Continue reading

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Firefox 83.0.0 and 78.5.0 ESR released

[German]Mozilla's developers have released version 83.0.0 and 78.5.0 ESR of the Firefox browser on November 17, 2020. These are new development branches for the browser. Here is an overview of the new features.

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Still Exchange servers unpatched for CVE-2020-0688 (Nov. 2020)

[German]Just a brief note to administrators of Microsoft Exchange servers: Did you patch them against the CVE-2020-0688 remote execution vulnerability? German CERT-Bund has been warning for weeks that numerous German Exchange servers accessible via the Internet are still vulnerable. I … Continue reading

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Windows network printer offline/blocked due to Malwarebytes, fix available as beta

[German]Another short note for users of Malwarebytes security solutions. Since October 20, 2020, users have been reporting and complaining that their network printers are offline under Windows. In the meantime, Malwarebytes has released a beta version with a correction that … Continue reading

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Microsoft Security Advice Dynamics 365 (Nov 10, 2020)

[German]Another short addendum from last week. Microsoft has published a security advisory for Dynaics 365 for November 2020 as of November 10, 2020, which I will post here briefly for your information.

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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 ...


Windows 10: Fix for Defender GUI bug with exclusions

[German]In Windows 10 some people have the problem that Defender does not show defined exclusions in the GUI. This should be fixed by Defender updates, but did not work for all of them. One person concerned has now sent me … Continue reading

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Microsoft discovers three APTs that have attacked COVID-19 vaccine companies

[Germany]Microsoft makes public the discovery of three hacker groups (APTs) from North Korea and Russia. The three state-sponsored hacker groups (APTs) are responsible for attacks on at least seven companies developing a COVID 19 vaccine or treatments. The hacker groups … Continue reading

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Security supdate Edge 86.0.622.69 released

[German]On November 13, 2020, Microsoft has published a security advisory that refers to another security update of the Edge Browser. Microsoft had to close two vulnerabilities that were unpatched in Edge 86.0.622.68. Here is some brief information about this.

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Enterprise networks: The 5 most common configuration errors

[German]Even though cybercriminals are using increasingly sophisticated attack techniques to penetrate corporate networks, hackers often have an easy time of it. Security breaches are often due to avoidable, often overlooked misconfigurations.

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Windows 7/Server 2008/R2 ESU support for the second year

[German]If you want to continue to have security updates for Windows 7 SP1, Windows Server 2008 and Windows Server 2008 R2 in 2021, you need the ESU package for the second year. Microsoft has been clarifying a few things about … Continue reading

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