I just had a discussion with a college who used the phrase
to inform a user (text display) that he is not authorized [to use the device] after holding a card in front of a device.
My guts tell me this is just wrong, but I wasn't able to point out why. I would have used "Not authorized" or "Unauthorized"?
He argued that "authority" means "Befugnis" in German, so "No authority" would just say "Keine Befugnis".
Whats the better or only option? Any other suggestions?