We can finally report on last successful login timestamp in Entra ID

Today’s article will be a short one. In a small, but meaningful update, Microsoft has released a new addition to the signInActivity resource, which allows us to determine the last time a given user was able to sign in successfully to the service (“last successful login timestamp”). Until recently, we …

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Protect your multi-tenant applications from being hijacked by admins in the customer tenant

In this article, we demonstrate a somewhat convoluted method used by bad actors to obtain persistence and execute operations in the context of Entra ID multi-tenant applications, as well as the steps Microsoft is taking to address the issue. As the solution only covers part of the story, a follow up article and a PowerShell script will be needed to address it. …

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Non-existent users show up in SignInActivity data (or how logs continue to disappoint)

Spotting some strange entries in the output of a Graph SDK cmdlet leads us down the rabbit hole of troubleshooting “missing” GUIDs in Entra ID. Or how SignInActivity data for users’ access to other tenants is collected …

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Scoping conditional access policies to “tagged” applications

Microsoft has been gradually expanding the reach of its Conditional Access feature, while at the same time also releasing a bunch of controls that allow us to more granularly scope CA policies. Examples in this area include not just the ability to scope policies to a subset of the objects …

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