Nope, we haven't.
Our situation (simplified) looks like this:
restart machine, we are using a script to tell us which application is currently active
when an app opens, we are inserting into 'com.apple.ServiceManagement.daemons.modify' (the rights will be removed when the app closes)
this app has the focus & remains open
within 3-5 mins, the application SecurityAgent with path '/System/Library/Frameworks/Security.framework/Versions/A/MachServices/SecurityAgent.bundle' takes the focus