The phrase "illegal act" refers to an action or behavior that is against the law or not allowed by the rules set by a society or government. It means doing something that is considered wrong or prohibited by the legal system. Full definition
Neither are illegal acts by private persons or corporations not directly involved with the government. (sciencedaily.com)
The Spanish government has threatened to take control of all financial transactions in order to stop the spending of state funds on illegal acts. (ccinews.net)