The server tracks exactly when a velocity packet is sent and matches it against the player's latency (ping). If a player is hit but their position data does not update within their ping window, the anti-cheat flags it.
In Minecraft , a typical client sends knockback "packets" to the server after being hit. An , causing the server to register the hit as one that inflicts no knockback. The effect for other players is unmistakable: they witness an opponent who takes several hits yet remains motionless—a clear advantage in fights over chasms or bridges. anti kb mod 189 verified
: Modern anti-cheat systems (like Watchdog or Grim) detect these mods by monitoring "velocity" packets. If a player is hit but their position remains mathematically static, the anti-cheat flags it as a violation. Community Perspective The server tracks exactly when a velocity packet