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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
Dec 2, 20257 min read


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 3, 20258 min read


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 18, 20259 min read


Microsoft Entra Restricted Management Administrative Units: Delegating Control Without Sacrificing Security
Today, I’ll take a closer look at Microsoft Entra Administrative Units (AUs) and Restricted Management Administrative Units (RMAUs) Despite being incredibly useful, AUs and RMAUs are still underutilized in many environments. As organizations scale and responsibilities shift across teams, the need for scoped delegation becomes increasingly important. AUs let you define clear administrative boundaries, while RMAUs go a step further by blocking even high-privileged roles from m

Sebastian F. Markdanner
Jun 9, 20258 min read


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 authentication , authorization , and password security covered in earlier posts, we're now prepared to dive into identity and access management (IAM) specifically for external and guest users. Collaboration beyond organizational boundaries presents unique security challenges, particularly in balancing streamlined access and robust security practic

Sebastian F. Markdanner
May 26, 20259 min read


Securing Microsoft Business Premium Part 04: Passwords Unlocked – Mastering Self-Service Password Reset and Password Protection
With authentication & authorization covered in the previous posts of the series, it's now time to dive into strengthening our password policies, empowering end-users, and enhancing overall password security. As I've gone over previously , passwords aren't exactly bulletproof, but for many organizations, transitioning to a fully passwordless setup overnight isn't realistic. While we steadily work towards that passwordless dream, managing and securing passwords across the org

Sebastian F. Markdanner
Apr 3, 202515 min read


God Mode with a Timer: Using Logic Apps to Restrict Elevated Access in Entra
In my last post I covered how to monitor the GOD Mode in Azure (Coined by the great John Savill ). While visibility and monitoring are great capabilities, there’s a big issue: the permanent nature of the access. - Let's fix that! The way Elevated Access currently works, there’s no built-in way to manage, or restrict it—not through PIM for time- and approval-based access, not with access reviews, and not with entitlement management either. Once access is enabled for a user,

Sebastian F. Markdanner
Mar 3, 20258 min read


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 subscriptions. However, with no built-in restrictions on when or how long this access can be used , monitoring these events is critical to maintaining security and accountability. Global administrators occasionally need to enable Elevated Access in Microsoft Entra to manage Azure subscriptions, but without proper oversight, this level of a

Sebastian F. Markdanner
Feb 18, 202513 min read


Your Microsoft Entra Tenant Isn’t as Secure as You Think – Fix It with Protected Actions!
Protecting highly critical configurations in our Entra tenants has never been easier! Join me as we explore Protected Actions in Microsoft Entra and how they help us lock down security-sensitive operations. A solid Identity and Access Management (IAM) strategy based on Zero Trust principles strengthens security by enforcing separation of duties, elevating access requests , and ensuring Just-In-Time (JIT) access , among others. But what if you need to further restrict specif

Sebastian F. Markdanner
Feb 3, 20255 min read


Securing Microsoft Business Premium Part 01: The First Step to an Unbreakable Defense
Today kicks off a comprehensive blog series where I’ll delve into the security features of the Business Premium license SKU, offering detailed step-by-step guidance and best practices. In this first installment, we’ll explore the capabilities included in Business Premium and walk through the foundational configurations throughout the Admin center, Microsoft Entra, Microsoft Defender and Microsoft 365 Apps Admin center. These are the key settings I recommend establishing right

Sebastian F. Markdanner
Jan 27, 202519 min read


Microsoft Entra Identity Governance Fundamentals: Access Packages
In this blog post, we’ll be covering the fundamentals of Access Packages in Microsoft Entra—it’s all about getting a solid understanding...

Sebastian F. Markdanner
Dec 9, 202412 min read


Microsoft Entra Identity Governance Fundamentals: Privileged Identity Management
As the Conditional Access series wraps up , we’re diving headfirst into a new adventure in Identity Management! Join me as I explore the...

Sebastian F. Markdanner
Nov 11, 202418 min read
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