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Category Archives: Security
Microsoft Security Update Summary (May 13, 2025)
[German]On May 13, Microsoft released security updates for Windows clients and servers, for Office – as well as for other products. The security updates eliminate 71 vulnerabilities (CVEs), seven of which were classified as 0-day. Five vulnerabilities have already been … Continue reading
Criminal business and malicious AI models on the darknet
[German] Check Point has published its new AI Security Report 2025. In it, the security researchers examine how artificial intelligence is changing the cyber threat landscape. This ranges from generative AI models built specifically for hackers, i.e. GPTs, on the … Continue reading
LockBit Onion website has been hacked
[German]Hack the cybercriminals seems to be the motto. The Onion website of the LockBit ransomware group appears to have been successfully attacked. The attackers captured the LockBit database with sensitive information about the group's operations.
Windows Server: Issues with Windows Hello issue and Kerberos events caused by April 2025 updates confirmed
[German]The April 2025 security updates for Windows Server may cause problems with domain controllers so that Kerberos event IDs 45 and 21 are logged. Microsoft has confirmed this problem and writes that logging in with Windows Hello in Key Trust … Continue reading
Posted in issue, Security, Update, Windows
Tagged issue, Patchday 4.2025, Security, Update, Windows Server
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Warning: iVentoy 1.0.2 installs obscure certificates and drivers
[German]A short warning to blog readers who use the iVentoy tool to distribute operating system images via a network and a PXE server. There is currently a discussion that the tool (currently version 1.0.2) installs an insecure kernel driver and … 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 ...
WSUS/ConfigMgr: No Defender updates since May 2, 2025
[German]A short note for administrators who distribute updates for Microsoft Defender via WSUS or ConfigMgr (MECM ). There was probably a problem at Microsoft, so that the update distribution has stalled since May 2, 2025, although updates are available from … Continue reading
Windows: RDP access possible with old cached credentials
[German]It has recently become known that remote desktop connections (RDP access) can also use old, revoked passwords from the cache for connections. Some people see this as a security risk. Microsoft has been informed by the security researcher, who discoved … Continue reading
PowerShell Script Cleanup-AdminCount
[German]A little tip for administrators of Windows systems. Mark Heitbrink has sat down and built a small PowerShell script that checks the Active Directory under Windows for orphaned administrator accounts and cleans the system of such corpses. The PowerShell script … Continue reading
World Password Day: Why accounts are still being hacked
[German]Why is it so difficult for users in everyday corporate life to adhere to the generally known basics of good password hygiene? Tom Haak, CEO of Lywand, a provider of automated security audits for MSSPs and their SME customers, addresses … Continue reading
WorkComposer misconfiguration exposes over 21 million screenshots
[German]It's the absolute worst-case scenario for data protection and a nightmare for companies. The misconfiguration of software exposes millions of screenshots containing extremely confidential data. Happened with the employee monitoring software WorkComposer due to a misconfiguration.