US prosecutors charged KuCoin, one of the world’s largest cryptocurrency exchanges, and two of its founders for failing to comply with American anti-money laundering rules.

Since KuCoin’s inception in September 2017, the exchange “willfully failed” to establish and maintain a program to keep the platform from being used for illicit activity, including terrorist financing, federal prosecutors in Manhattan alleged Tuesday. The company also didn’t put proper controls in place to verify customers’ identities or file reports on suspicious transactions on the exchange, according to the US Attorney’s Office for the Southern District of New York.