### Is there an existing issue for this? - [X] I have searched the existing issues ### Problem statement UC credentials using SPN secrets do not work with storage accounts with firewall enabled. Customers need to switch to MI ### Proposed Solution - Detect storage accounts with firewalls using AzureRM - https://github.com/databrickslabs/ucx/issues/886 - Flag that SPNs that have access to these storage accounts would stop working and users need to migrate to MI - https://github.com/databrickslabs/ucx/issues/339 ### Additional Context _No response_