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The Hidden Steps Microsoft Forgot to Document: Securing Azure App Service Authentication Behind Front Door with Private Link
Today I want to walk through how to configure Azure App Service Authentication when your App Service sits behind Azure Front Door and is accessed through a Private Link. On a dreadful day in october 2025, I received something that most IT people fear - a request from a client! The request included information from the client, that they were struggling with authentication on a Web App deployed behind Azure Front Door using Private Link. What looked like a straightforward setup

Sebastian F. Markdanner
4 days ago7 min read
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Mastering Microsoft Entra Authentication Contexts - Part 4: Monitoring and Reporting with KQL & M365IdentityPosture
We’ve covered what Authentication Contexts are, why they matter, and how they help us strengthen access and data security in Microsoft 365. Now it’s time to answer the next question - how do we monitor and report on their usage? Unfortunately, there’s no built-in way to gain that visibility today. Neither Entra ID nor Microsoft 365 provides a simple method to inventory or audit Authentication Contexts across our estate including Conditional Access, PIM and Sensitivity labels

Sebastian F. Markdanner
Nov 38 min read
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Mastering Microsoft Entra Authentication Contexts - Part 3: Advanced Data Protection
With identities and access strengthened in part 2 , it’s time to turn our focus to real-world data protection  with Authentication Contexts. One of the more underused capabilities of Authentication Contexts is their power to secure data across the environment, whether through direct enforcement using Sensitivity Labels or by protecting user sessions via Microsoft Defender for Cloud Apps. In this post, we’ll explore exactly that: how to secure organizational data using Authent

Sebastian F. Markdanner
Oct 2010 min read
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Mastering Microsoft Entra Authentication Contexts – Part 2: Real-World Access & Action Controls
In Part 1 of this mini-series, we explored the what, why, and how of Microsoft Entra Authentication Contexts, laying the foundation for what they are and how they work. In this second part, we’ll build on that foundation with real-world examples of how Authentication Contexts can secure user access and critical actions. Along the way, we’ll walk through configurations, share recommendations, and look at the Conditional Access policies that tie it all together. So, let’s dive

Sebastian F. Markdanner
Sep 298 min read
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Mastering Microsoft Entra Authentication Contexts – Part 1: What They Are, Why They Matter, and How to Use Them
Over my last few posts, I’ve casually mentioned Authentication Context a few times, so I thought it was about time we gave the feature a proper spotlight. Within Microsoft Entra, we sometimes encounter scenarios where we need to enforce specific conditions for certain sub-actions or unique requirements. While Conditional Access can directly enforce conditions in most cases, there are times when it’s trickier — especially if we want to enforce a condition for a single  action

Sebastian F. Markdanner
Aug 189 min read
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Securing Microsoft Business Premium Part 05: Efficient Identity Management for External Users with Microsoft Entra
Managing external users is one of the most tedious—but also critical—challenges in a Microsoft Business Premium environment. With...

Sebastian F. Markdanner
May 269 min read
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Unlocking Microsoft Entra’s Elevated Access Logs: Better Security, Better Insights
Elevating access to manage Azure subscriptions is a valuable tool for administrators, particularly when dealing with unknown or orphaned...

Sebastian F. Markdanner
Feb 1813 min read
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Securing Microsoft Business Premium Part 02: Your Authentication is Broken—Here’s How to Fix It
In the first part of this series, we laid the foundation for securing Microsoft Business Premium environments, covering the core security...

Sebastian F. Markdanner
Feb 1015 min read
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Passkeys 101: How Microsoft Entra Simplifies Passwordless Authentication
Today, we’re exploring passkeys—what they are, how they work, and how Microsoft’s latest GA features make passwordless authentication...

Sebastian F. Markdanner
Dec 2, 202411 min read
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