WICHITA, KAN. – A Wisconsin man has been sentenced to two years federal probation and ordered to pay $183,000 in restitution for taking part in a cyber-attack on Koch Industries in Wichita that was sponsored by a group known as Anonymous, U.S. Attorney Barr Grissom said today.

Eric J. Rosol, 38, Black Creek, Wis., pleaded guilty to one misdemeanor count of accessing a protected computer. In his plea, he admitted that on Feb. 28, 2011, he took part in a denial of service attack on a Web page of Koch Industries – Kochind.com. From Wisconsin, he used software called a Low Orbit Ion Cannon Code, which was loaded on his computer. He took part in the attack for approximately one minute. The attack, which was organized by a computer hacking group known as Anonymous, caused Kochind.com to go offline for approximately 15 minutes.

Koch Industries had hired a consulting group to protect its Web sites at a cost of approximately $183,000.

Grissom commended the FBI and Assistant U.S. Attorney Alan Metzger for their work on the case.