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I noticed my system was running slow today and checked the list of system users in Terminal as a precaution. I found several users that I don’t recognize. Should I be concerned?
_applepay
_captiveagent
_ctkd
_datadetectors
_findmydevice
_gamecontrollerd
_hidd
_mbsetupuser
_mobileasset
_ondemand
_pcastagent
_pcastlibrary
_pcastserver
_wwwproxy
_xgridagent
_xgridcontroller
_xserverdocs