Samourai Wallet co-founder William Hill released on bail

He was previously arrested along with the app's other co-founder, Keonn Rodriguez, on federal charges of money laundering and running an unlicensed money transmitting business.

Hill will fight the charges.

Rodriguez also pleaded not guilty and was released on $1 million bail.

Samourai Wallet has a built-in mixer that can be used to anonymize transactions.