Workers used stolen or fake U.S. identities to secure employment, funneling millions of dollars to the North Korean government.

“These schemes target and steal from U.S. companies and are designed to evade sanctions and fund the North Korean regime’s illicit programs, including its weapons programs,” Assistant Attorney General John Eisenberg, the head of the Justice Department’s National Security Division, said in a statement.

The U.S. Department of Justice and FBI on Monday announced an arrest and indictments targeting North Korea’s so-called “IT worker” program, where North Koreans obtain remote IT-related positions at more than 100 U.