A Wisconsin man pleaded guilty Wednesday to taking part in a cyberattack staged by the computer hacking group Anonymous on Wichita-based Koch Industries.
Eric J. Rosol, 37, of Black Creek, Wis., pleaded guilty in a Wichita federal court to one misdemeanor count of accessing a protected computer, U.S. Attorney Barry Grissom’s office said.
In his plea, he admitted that on Feb. 28, 2011, he took part in an attack on Koch’s main website.
Anonymous asked conspirators to undertake a cyberattack using a tool that could send a high volume of repeated requests to various Koch Industries websites. Numerous conspirators complied.
From Wisconsin, Rosol used software called a Low Orbit Ion Cannon Code for an attack that lasted about one minute. The attack caused Koch’s main website to crash for about 15 minutes, according to Grissom’s office.
Koch hired a consulting group to protect its websites at a cost of $183,000. Koch agreed that the cost attributed to Rosol’s attack was less than $5,000.
In July, Rosol notified the judge of his intent to plead in the case. Such notices typically indicate a deal is in the works for reduced charges. Rosol was indicted in March on one count each of damaging a computer and conspiracy to damage a computer.
Sentencing is set for Dec. 2. He faces a maximum penalty of one year in federal prison, a fine up to $100,000 and restitution in an amount to be determined by the judge.
Contributing: The Associated Press.