A Wisconsin man was sentenced on Monday to two years probation after he admitted taking part in a cyber attack sponsored by the hacker group Anonymous against Kansas conglomerate Koch Industries in February 2011, federal prosecutors said. Eric J. Rosol, 38, also was ordered by the U.S. District Court in Wichita, Kansas, to pay $183,000 restitution for waging the attack on Koch Industriess, which is led by billionaire brothers David and Charles Koch who are prominent contributors to conservative political causes. Americans for Prosperity, a group founded by David Koch, launched an advertising campaign to support the proposed curbs.