Social networks
Awards
MVP:
2013 – 2016
WIMVP:
2017 – 2020
Category Archives: Security
Ransomware attack on the US pipeline – the house is burning
[German]Last week, there was a ransomware attack on the operator of a pipeline on the US East Coast, as a result of which the pipeline had to be shut down. Now, figuratively speaking, everywhere is on fire. The U.S. president … Continue reading
Microsoft Security Update Summary (May 11, 2021)
[German]On May 11, 2021, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for Microsoft Exchange – have been released. Below is a compact overview of these updates.
Security Updates (KB5003435) for Microsoft Exchange Server (May 11, 2021)
[German]Microsoft has announced on May 11, 2021 – the expected (see Is a hotfix for Microsoft Exchange coming today? (May 11, 2021)) Security updates released for Exchange Server 2013, Exchange Server 2016 and Exchange Server 2019. This is to immediately … Continue reading
Is a hotfix for Microsoft Exchange coming today? (May 11, 2021)
[German]A brief note and heads up for administrators of Microsoft Exchange on-premises systems. Reserve some time today (05/11/2021) to patch Exchange servers. If the available information is correct, Microsoft is rolling out a critical hotfix for Microsoft Exchange Server in … Continue reading
Windows: Create and detect hidden user accounts
[German]Today a short article about a security topic I recently came across by chance. It's about the possibility to create hidden but active user accounts under Windows via net user command. This ability is increasingly being exploited by malware to … Continue reading
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 ...
German security researcher hacked Apple's AirTag
[German]A German security researcher has managed to break into the firmware of Apple's AirTag controller, dump it and then manipulate it after a few attempts. This allowed the security researcher to display a YouTube video on the phone to users … Continue reading
Ransomware attack on US pipeline operator (May 2021)
[German]The last few days have again seen spectacular cases of ransomware infections on companies and organizations. The biggest case occurred last Thursday in the U.S., where the largest U.S. pipeline company had to shut down its operations after a successful … Continue reading
Audacity and its telemetry: New management's middle finger to the community
[German]Open source enthusiasts are currently on the barricades, because Audacity has a new management. And this has simply given the audio player a set of functions for telemetry data collection. This does not go down well with the community, which … Continue reading
PoC for Microsoft Exchange bug discovered by NSA public
[German]Various security vulnerabilities in Microsoft Exchange were discovered by the US intelligence agency NSA and reported to Microsoft. Microsoft closed these vulnerabilities in April 2020 with corresponding updates. As a "reminder for the weekend", we would like to point out … Continue reading
0patch fixes Windows Installer LPE-Bug (CVE-2021-26415)
[German]ACROS Security has released a micropatch for the CVE-2021-26415 vulnerability in Windows Installer. This vulnerability was patched by Microsoft in April 2021 via a security update. The 0patch solution is for people who do not have an ESU license.