Exploring Publicly Accessible Entra ID Tenant and User data

Changelog 2025-04-09 - initial version 2025-04-11 - updated with AADInternals OSINT tool Tenant public information Your tenant-id With the page https://www.whatismytenantid.com/, you can find your TenantID How does it work? We can check the Network tab of the browser and find a query to the OpenID Configuration endpoint based on the domain: https://login.microsoftonline.com/{{YOUR-DOMAIN-HERE}}/.well-known/openid-configuration ^ We can also find a tenant location with the tenant_region_scope field. ^ Whatismytenantid doesn’t work? You can get the same from the website https://gettenantpartitionweb.azurewebsites.net/! ...

April 9, 2025 · Mateusz Jendza

Entra ID as a Code

Make life easier with Entra ID as Code TL;DR It is the end of 2024; daily, we use the following: CI/CD pipelines for infrastructure as code (IaC) deployment to create Services, Applications, Storages, etc, permissions (RBAC) from resources to resources (App Service WebApp1 should read Blob Storage WebApp1Storage), secrets, we hate them, but we found a solution to avoid secrets with Managed Identity and Workload Identity solutions, What is the plan for us? We will use Azure Portal and Entra ID blade to manage our applications, permissions, and secrets. We can create and update our app registrations via the browser. Can we improve our Entra ID and Entra External ID with IaC, as shown in the screenshot (Picture 1) below? ...

November 28, 2024 · Mateusz Jendza

MFA passwordless authentication methods for Entra ID

TL;DR It is not easy for Entra ID Tenant administrators to choose the best authentication method for their employees, vendors, and partners. You must consider the scenario, the environment, and the passwordless technology. I’m focusing only the passwordless MFA authentication methods in the corresponding changes in the Entra ID - the MFA will be required. Side note: Microsoft announced that MFA will be required for a couple of services, like Azure Portal or CLI. The document mentions that Security defaults will force MFA or should be enabled by Conditional Access Policies for users accessing the defined services. We will see how the final implementation will look like (I promise to update the post with the final state). ...

August 19, 2024 · Mateusz Jendza

Entra External ID for Customers - first impression

Entra External ID for Customers is a new Azure Tenant type that allows you to create digital identities for your customers. Use cases B2B partners. You can create a dedicated customer tenant for your partners and give them access to your applications, manage users and groups in the tenant without partners’ access to your organisation (workforce tenant). Your data is fully secured and isolated. Online services and web shops for your retail. Full self-service is available to sign up/sign in and manage their accounts. You can also use social logins like Google or Facebook. Product pages, helpdesk and support. Keep customer engagement and provide them with the best experience. Cross-device authentication. User-friendly experience to log in on the TV screen, medical devices, or any other IoT where you can display a QR code or PIN to log in. What is Entra External ID for Customers? In simple words, it is a new tenant type. From now you can decide Workforce or Customer type. It is a new tenant type to create - so for customers, it is separate - and not connected with your organisation’s tenant. Please remember that the service is still in preview mode - but only till the 15th of May, so only limited features may be available. Service will be GA soon!! ...

May 2, 2024 · Mateusz Jendza

Entra Verified ID deep dive

History Updated: 30-06-2024 Playground Entra Verified ID Workshop Do you want to try it? Use my GitHub repository to set up your credentials. Entra Verified ID Workshop You can start with my workshop and create a simple flow with Entra Verified ID. All divided into steps with the code and the explanation. Big Picture Verifiable Credentials solve problems for identities in the digital world. What does it mean? Please check the story: You own the national ID card. It is in your wallet. To get the document, you must visit the government office, provide information/documents, check your identity with your old ID, passport, or proof of birth, and wait for the document. ...

March 12, 2024 · Mateusz Jendza

Understanding the Differences Between Microsoft Entra ID and Azure AD B2C: How to Select the Right Identity Solution for Your Business

Microsoft Entra ID External Identities vs Azure AD B2C. TL;DR A summary of differences between Entra ID and Azure AD B2C. Entra ID in this article is used to build a product. Differences between Entra ID and Azure AD B2C To share resources from your organization (Entra ID) like PowerBi, OneDrive, and SharePoint - use B2B collaboration. Please remember: in many cases, you must assign the expected licenses - PowerBI*, for example, and you will be able to use PowerBI Portal. ...

January 23, 2024 · Mateusz Jendza