Category Archives: General

Cloud outages: Microsoft reveals details of DDoS attack by Anonymous Sudan/Storm-1359

Posted on 2023-06-19 by guenni

[German]It was hacker attacks that brought Microsoft cloud services to their knees for hours on and off since June 5, 2023. My reports here on the blog that a hacktivist group called "Anonymous Sudan" claimed responsibility didn't turn out to … Continue reading →

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OAuth2 Security Best Current Practices

Posted on 2023-06-11 by guenni

The IETF has updated a document "OAuth2 Security Best Current Practices" as of June 6, 2023. The document describes current security best practices for OAuth 2.0, updating and extending the OAuth 2.0 security threat model. It incorporates practical experience gained … Continue reading →

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Trend Micro: Minimum Windows Requirements for ACS (Azure Code Signing)

Posted on 2023-06-04 by guenni

Trend Micro released a document in late May 2023 addressing the minimum Windows requirements for Azure Code Signing (ACS) for Worry-Free Business Security (on-premises) and Worry-Free Business Security Services (WFBS-SVC).

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Barracuda warns of attacks on email gateways via 0-day vulnerability (May 19, 2023)

Posted on 2023-05-25 by guenni

[German]Vendor Barracuda is warning of a 0-day vulnerability in its Email Security Gateway Appliance (ESG) that was discovered on May 19, 2023, following an attack. The vendor has since released security updates to close this vulnerability on the affected appliances … Continue reading →

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Windows shows internal SATA hard disks/SSDs as Removable

Posted on 2023-05-23 by guenni

[German]It's a problem that some users experience with Windows: Internet SATA hard drives and SSD drives are shown as removable. This of course makes no sense and there have been instructions to fix this since Windows 7. The problem occurs … Continue reading →

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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 ...

Exchange Online: Reminder Remote PowerShell is "deprecated" as of July 15, 2023

Posted on 2023-05-09 by guenni

[German]Microsoft had already announced the discontinuation of Remote PowerShell (RPS) in Exchange Online for some time (see my post Exchange Online PowerShell V2 soon deprecated, replaced by PowerShell V3 from December 2022). Starting July 15, 2023, Microsoft plans to phase … Continue reading →

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Windows April 2023 Updates: Netlogon- and Kerberos protocol changes, there seems to be issues

Posted on 2023-04-22 by guenni

[German]Microsoft has indeed postponed its schedules for phased adjustments to the Netlogon protocol (due to CVE-2022-38023) and the Kerberos protocol from April 11, 2023 to June 13, 2023. But with the Windows update of April 11, 2023, the option to … Continue reading →

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Microsoft moves tenant security standards in Azure AD to MFA by May 8, 2023

Posted on 2023-04-21 by guenni

[German]Microsoft is forcing/moving Azure AD customers to MFA authentication as a security standard within days. A German blog reader just informed me that he (as a global Azure AD admin) received a notification from Microsoft and that his organization will … Continue reading →

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Windows LAPS integration via April 2023 update causes trouble for administrators

Posted on 2023-04-15 by guenni

[German]Microsoft has integrated its Local Administrator Password Solution (LAPS) directly into the Windows operating system with the April 2023 patchday (April 11, 2023). This was done due to "popular demand" from enterprise customers, as Microsoft wrote. However, this move caused … Continue reading →

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Patchday: Windows 11/Server 2022 Updates (April 11, 2023)

Posted on 2023-04-12 by guenni

[German]On April 11, 2023 (second Tuesday of the month, Microsoft patch day), Microsoft also released cumulative updates for Windows 11 22H1 and 22H2. In addition, Windows Server 2022 received an update. Here are some details about these updates, which are … Continue reading →

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