Infamy Points are points received when you do crimes in Archeage, The number of infamy points you have decide whether or not you become a pirate.
When you are a Pirate, all NPCs that are not pirate, specially guards will become hostile to you, even trying to kill you You become a pirate when you accumulate more than 3,000 Infamy points
More Info: Pirate
How to Decrease Infamy Points[edit | edit source]
Two NPCs in Marianople, two in Solis Headlands ,one in Sanddeep and one in Rookborne give you a quest to do public service that when completed, decrease your Infamy Points. They reduce 10, 10 and 50 infamy respectively.