ApexOne - Device access permissions was changed

Requête originale, sans modification.

let threshold = 1;
TMApexOneEvent
| where EventMessage has "Device access"
| extend DeviceCustomNumber3 = coalesce(
                                  column_ifexists("FieldDeviceCustomNumber3", long(null)),
                                  DeviceCustomNumber3,
                                  long(null)
                              )
| extend Permission = case(
                            DeviceCustomNumber3 == "0", "Modify", 
                            DeviceCustomNumber3 == "1", "Read and execute",
                            DeviceCustomNumber3 == "2", "Read",
                            DeviceCustomNumber3 == "3", "List device content only", 
                            DeviceCustomNumber3 == "4", "Block",
                            "unknown"
                      )
| summarize Permissions = make_set(Permission) by DstUserName
| extend PermissionCount = array_length(Permissions)
| where PermissionCount > threshold
| extend AccountCustomEntity = DstUserName