If you look at the docs for nsubiquitouskeyvaluestore [1] the fingerprint warning doesn't exist there. So it seems to reason that this is about "source device"

If you look at the docs for nsubiquitouskeyvaluestore [1] the fingerprint warning doesn't exist there. So it seems to reason that this is about "source device" identification. [1] https://developer.apple.com/documentation/foundation/nsubiquitouskeyvaluestore https://developer.apple.com/documentation/foundation/nsubiqu...