the.com/authorization
Proof you're allowed in the room, not just proof you exist.
means The act of granting or confirming permission to access, use, or do something specific.
from From Latin auctor, an originator or master, via Medieval Latin auctorizare, to give authority — the same root that crowns authors and authorities alike.
Not authenticationAuthentication is who you are; this is what you may do.
Security orderYou authenticate first, then get authorized.
OAuth famePowers most log in with Google buttons.