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Microsoft Entra ID | blocks Cross-Domain Logins from August 2026 Microsoft Entra ID

Microsoft Entra ID | blocks Cross-Domain Logins from August 2026

federatedTokenValidationPolicy mandatory from August 2026!Federated authentication is one of the oldest trust anchors in Microsoft environments and at the same time one of the most dangerous. Whoever binds AD FS or a third-p…

July 6, 2026 ⏱ 12 min read
Microsoft Entra ID … Continue reading →
Microsoft 365 Security Audit with PowerShell, Part 1: Identity and Access Microsoft 365

Microsoft 365 Security Audit with PowerShell, Part 1: Identity and Access

Auditing MFA, Conditional Access, privileged roles, guests, and Exchange mailboxes with raw data instead of portal clicksA click through the admin centers does not reveal a compromised tenant. Spot checks in the web interfac…

June 28, 2026 ⏱ 18 min read
Microsoft 365 … Continue reading →
OneDrive | Microsoft to delete unlicensed accounts and archives OneDrive for Business

OneDrive | Microsoft to delete unlicensed accounts and archives

Microsoft to delete unlicensed accounts and archives from July 2026Microsoft is introducing a new lifecycle for unlicensed OneDrive accounts starting in July 2026, under which unpaid archives will be permanently deleted afte…

June 14, 2026 ⏱ 5 min read
OneDrive for Business … Continue reading →
[UPDATE] Copilot | Claude Fable 5 Available Microsoft Copilot

[UPDATE] Copilot | Claude Fable 5 Available

WARNING – US GOVERNMENT BANS FABLE 5 EXPORTS! The US government has restricted access to Fable 5 and Mythos 5 under an export control directive citing national security concerns, effectively blocking access for all non-US us…

June 11, 2026 ⏱ 3 min read
Microsoft Copilot … Continue reading →
M365 Organization Settings via PowerShell Microsoft 365

M365 Organization Settings via PowerShell

Harden M365 Tenant via PowerShell & GraphEveryone knows the situation with a fresh M365 tenant: You click through one admin center after another and configure everything as you see fit. This costs time, because each portal h…

June 5, 2026 ⏱ 12 min read
Microsoft 365 … Continue reading →
Upgrade Ubuntu 25.10 -> 26.04 LTS | Bug "Distribution data outdated" Open Source & Tools

Upgrade Ubuntu 25.10 -> 26.04 LTS | Bug "Distribution data outdated"

A do-release-upgrade from Ubuntu 25.10 to 26.04 LTS may fail because the system considers the target distribution invalid. The error message "Distribution data outdated" appears even though the system has been fully updated …

May 22, 2026 ⏱ 5 min read
Open Source & Tools … Continue reading →
AI Agents in M365 | Compliance Without Humans Microsoft Copilot

AI Agents in M365 | Compliance Without Humans

Permissions in Microsoft 365 have been built over the last two decades around a single, largely unspoken assumption: data is accessed by humans. That assumption is now beginning to break down. With Copilot, SharePoint Agents…

May 10, 2026 ⏱ 6 min read
Microsoft Copilot … Continue reading →
RDP File Signing: Windows Warning Message Microsoft Windows Server

RDP File Signing: Windows Warning Message

The days when unsigned RDP files could simply be accepted by clicking "Don't ask me again" are over. Since Microsoft's April 2026 security update, the rules have become significantly stricter.Every time you open an unsigned …

May 5, 2026 ⏱ 3 min read
Microsoft Windows Server … Continue reading →
OneDrive Client | Management of Deleted Files OneDrive for Business

OneDrive Client | Management of Deleted Files

The management of deleted files within the Microsoft 365 ecosystem is currently undergoing a fundamental change in architecture. To optimize synchronization performance and make data recovery more predictable for administrat…

May 1, 2026 ⏱ 2 min read
OneDrive for Business … Continue reading →
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