Definition of collusion
Collusion is when 2 or more players at the same table conspire with each other to exploit 1 or more other players at the table. Collusion is illegal in all poker rooms, whether online or live. Collusion can take many different forms, but the goal is always to act in groups of 2 or more to give each other an unfair advantage.
Some examples of collusion
Let's think of an online cash game table with 6 seats. You and 4 of your friends sit on the table while waiting for a 6th player to strip. The goal will be to systematically raise as soon as the 6th player is in the hand. Thus, most of the time, he will have to fold. If that player raises, say a pair of 9, but sees that he makes 3bet, and 4bet, he will tell himself that he is beaten and fold his hand. The 5 players will then split the profits among themselves. Another example of collusion is practiced live. You and your friends make a list of non-verbal codes to do with your hands to tell your group what two cards you hold. It is forbidden to reveal the nature of our cards during a round. But with this system, you will be able to give valuable information to your friends by letting them know your cards without everyone knowing. The examples of collusion are unlimited.