I think you might be misunderstanding the scope of an &quot;input&quot;. It&#x27;s something like &quot;the player pressed the key&#x2F;button that maps to move forward&quot;, not &quot;move to position X&quot;. Teleport hacks wouldn&#x27;t be possible in the former case because the player has to actually move their avatar to the desired position by traversing the game world through a series of inputs. The server would then process the movement inputs, and the avatar would say, bump into a wall, preventing it&#x27;s movement. There would be no input for &quot;my position is now X&quot;.