The noob protection blocks the starting of attacks.
It consists of 2 main components: 1. A limit (often 5.000 or 10.000 Points), as long as a player has less points they are in noob protection. As soon as a player has more points than the limit, they can attack and can be attacked by any player bigger than them. 2. A factor (So far always 5x). This sets the span of points players in the noob protectin can attack.
New since U6 is the Outlaw mechanic. A player within the Noobprotection can attempt to attack players too strong for them. They will get a warning and if they continue, they will be an outlaw for a period of time in which any stronger player can attack them.
The limit is 10.000 with a factor of 5. A player with 1.000 points can attack and be attacked by players between 200 and 5.000 points. A player with 10.001 points can attack and be attacked by players between 2.001 and infinite points.