Recently I tried to set up ClaimXRay NG with the guidance of DSInternals, learned things, failed here and there and stumbled upon a totally-not-helpful error message: “There was an error in the uploading the private certificate and password. Please try again or contact support.” To cut to the chase: This message appeared when I was […]
https://f12.hu/2026/01/29/entra-app-instance-property-lock-vs-saml-signing-certificate-an-uncommon-way-of-self-sabotage/
One of my previous posts covered a “basic” way to track secure score changes using Graph API with application permissions. While I still prefer application permissions (over service accounts) for unattended access to certain resources, sometimes it is not possible – for example when you want to access resources which are behind the Defender portal’s […]
https://f12.hu/2025/05/02/powershell-with-entra-cba-unattended-access-to-defender-portal-when-graph-api-or-application-permission-does-not-fit/
Housekeeping with Defender for Identity – finding unassinged AD subnets using the IdentityLogonEvents table
https://f12.hu/2024/10/25/find-clients-authenticating-from-unassigned-ad-subnets-using-defeder-for-identity/
Microsoft Secure Score is a useful feature in the Defender portal, but I missed the alerting option.
https://f12.hu/2024/05/06/tracking-microsoft-secure-score-changes/
In the November 2023 – What’s New in Microsoft Entra Identity & Security w/ Microsoft Security CxE identity episode, a public preview feature of Entra Workload ID premium license was presented (link) which was actually announced on November 9th (link). I really love the idea of restricting application key credentials to a predefined list of […]
https://f12.hu/2023/12/11/entra-workload-identities-trusted-certificate-authorities-public-preview/
So recently I was planning on requiring authentication stenghts in a Conditional Access policy – more precisely requiring Windows Hello for Business – when I realized that I’m not 100% sure that every user will meet this requirement. I wanted to make sure everybody has WHfB enrollment and that it is actively in use – […]
https://f12.hu/2023/10/15/query-windows-hello-for-business-registrations-and-usage/
Disclaimer: the following configurations require Microsoft Entra Workload Identities Premium licence (link) In my previous post, I highlighted the risks of using password credentials for apps and how to spot client secret usage for service principals. This post will focus on limiting password lifetime for apps (scoped to tenant or specific application level) which can […]
https://f12.hu/2023/06/18/fighting-azuread-app-registration-client-secrets-step2-limiting-app-password-lifetime/
Workload identity (including service principals) security keeps bugging me, especially the password credentials (aka client secret). I’m sure there are scenarios where this is the only option, but I see environments where these are used just because it is easier to implement. And one day I woke up and realized how dangerous it can be […]
https://f12.hu/2023/06/12/fighting-azuread-app-registration-client-secrets-step1-reviewing-client-secret-usage/
When talking about Azure AD security, we tend to put less focus on service principals/app registrations*. But when we take into consideration that these principals can have assigned API permissions and “static” credentials (certificate or password) and that these credentials in the wrong hands can cause serious damage, we may change our attitude.* While “App […]
https://f12.hu/2023/05/06/azuread-app-registrations-the-application-permission-credentials-combination-security-nightmare/
The story in short: one of my customers asked me if it is possible to generate a report on all content in Office365 shared externally. Doing some searches I found the following solutions:– Run the sharing reports on each site and each OneDrive (link, link)– Run reports based on audit logs (link) While these reports […]
https://f12.hu/2023/03/13/sharepoint-online-file-sharing-report-using-graph-api-and-powershell/