All about Microsoft 365
Last week, we explored Entra ID’s app instance property lock feature. As part of the process, we examined one possible way that bad actors could take advantage of the convoluted nature of working with multi-tenant applications within Microsoft 365 and their in-tenant representation, the service principal. As the app instance …
Continue readingScript to review and remove service principal credentials
UPDATE: The property is now available in the /v1.0 version of the Graph API! 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 …
Continue readingWe can finally report on last successful login timestamp in Entra ID
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. …
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 …
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 …
Continue readingScoping conditional access policies to “tagged” applications