City of Potsdam (Germany) offline – IT Servers shutdown

[German]The city of Potsdam, located near Berlin/Germany, has shut down its servers. E-mails no longer reach the staff, ID cards can no longer be applied for, etc. The administration is virtually at hold. Addendum: Added information about Citrix ADC vulnerability.

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Citrix vulnerability: New updates and scanners for testing

[German]Citrix developers have now released further firmware updates to close the vulnerabilities reported before Christmas 2019. There is also a scanner to detect Citrix systems compromised via the CVE-2019-19781 vulnerability. And there is a critical vulnerability in Cisco Firepower.

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German Automotive Supplier Gedia Ransomware Victim

[German]The automotive supplier Gedia has been infected with ransomware. As a result, the IT systems were shut down because the blackmailing Trojan also encrypted data.

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Windows 10 Insider Preview Build 19551

On January 23, 2020, Microsoft released the Windows 10 Insider Preview Build 19551 (20H2 development branch) for Insiders in the Fast Ring. In the Windows Blog, Microsoft lists the changes and innovations of this build.

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Microsoft Teams outage (01/23/2020)

[German]Three hours ago there was a service outage from teams, as I just learned from Microsoft’s service team on Twitter. A few minutes ago, Microsoft support was able to fix the glitch.

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Microsoft Defender ATP Product Brief

Just a note for administrators in corporate environments who want to use or are interested in using the paid Microsoft Defender Advanced Threat Protection.

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Exchange Online/Access failure (01/23/2020)

[German]At Microsoft there seems to be a disruption in cloud services. Exchange Online (and according to the title of the status report Access) are probably affected by this, as I just learned from blog reader Andreas P. (thanks for that).

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Are Windows 10 update related printing issues are back?

[German]It seems that the cumulative updates of December 2019 and January 2020 are again causing printing issues for some users. Suddenly, printers disappear or printing stops working.

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Windows 10 V1809: Install error with Update KB4534273

[German]A short note for users of Windows 10 version 1809 who want to install the cumulative update KB4534273 I have just received some information that this causes installation errors on some machines and then a rollback is performed.

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Big Data Leak at German car rental Buchbinder

[German]There is another huge data leak to be report within the last 24 hours. A data leak has occurred at the German Buchbinder car rental company, where personal data of three million customers was stored on an open server.

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