Minecraft wiki entry for Player_versus_Player, associated text: You might have iron armor and a pickaxe mining in a well known mine, but you're not very hard to defeat against someone without armor but a stone sword, which is the first weapon people settle for. Keep a sword on you at all times and hopefully, you can retaliate, plus, keep armor, even if it is basic leather or even the fragile gold armor, so if someone does attack you, you can still live to turn around and kill your attempted killer.