As other commenters eluded to already, deception is an adversarial attack on the world model of another observer—providing another observer with inputs specifically crafted to introduce a desired error into their world model. Obviously, this is easier to accomplish when the attacker has a good insight into what the victim’s world model was to begin with, how they think, what they can and cannot observe, etc (all other things being equal).
As other commenters eluded to already, deception is an adversarial attack on the world model of another observer—providing another observer with inputs specifically crafted to introduce a desired error into their world model. Obviously, this is easier to accomplish when the attacker has a good insight into what the victim’s world model was to begin with, how they think, what they can and cannot observe, etc (all other things being equal).