Federal prosecutors have filed criminal charges against two Ukrainian men accused of hacking into the U.S. Securities and Exchange Commission’s computer system to spread nonpublic information to a network of traders who illegally profited from it.

Federal prosecutors in New Jersey on Tuesday unsealed a 16-count federal indictment charging Artem Radchenko, 27, and Oleksandr Ieremenko, 26, both from Kiev, Ukraine, with securities fraud conspiracy, wire fraud conspiracy, computer fraud conspiracy, wire fraud, and computer fraud.