A 22-year-old Ontario man has plead guilty to charges in connection with an international hacking ring that allegedly gained access to secret data from the U.S. Army, Microsoft and video game developers.

The Mississauga man was one of five people charged in connection with the alleged hacking ring, the U.S. Department of Justice said in a statement. The other suspects accused in the case are U.S. and Australian citizens.

"As the indictment charges, the members of this international hacking ring stole trade secret data used in high-tech American products, ranging from software that trains U.S. soldiers to fly Apache helicopters to Xbox games that entertain millions around the world," U.S. Assistant Attorney General Leslie Caldwell said in the statement.

"The American economy is driven by innovation. But American innovation is only valuable when it can be protected."

The Canadian man pled guilty on Tuesday to conspiracy to commit computer fraud and copyright infringement. His plea is believed to be one of the first convictions of a foreign-based individual for hacking into U.S. businesses to steal trade data, according to the U.S. Department of Justice.

"These are not harmless crimes, and those who commit them should not believe they are safely beyond our reach," U.S. Attorney Charles Oberly said in the statement.

The hacking group is accused of stealing between $100 million to $200 million worth of intellectual property, including information about the then-unreleased Microsoft Xbox One gaming console, an Apache helicopter simulator software for the U.S. Army, and pre-released versions of the video games "Call of Duty: Modern Warfare 3" and "Gears of War 3."

The U.S. Justice Department said that the alleged cyber-theft went on for years, between January 2011 to March 2014.

David Pokora of Mississauga was arrested on March 28, while attempting to cross the U.S. border from Canada at the Lewiston, N.Y., port of entry. The Department of Justice did not say why he was attempting to enter the U.S. He is scheduled for sentencing on Jan. 13, 2015.

Sanadodeh Nesheiwat, 28, of Washington, N.J., has pled guilty to the same charges as Pokora.

Also charged in the case are Nathan Leroux, 20, of Bowie, Md., Austin Alcala, 18 of McCorsdsville, Ind., according to a U.S. court indictment from April that was unsealed Tuesday. The pair has yet to be tried.

The U.S. Department of Justice says an unnamed Australian man has also been charged under Australian law for his alleged role in the conspiracy.