A Wisconsin man accused of joining a cyberattack on Wichita-based Koch Industries was told Wednesday that he cannot communicate with the computer hacking group Anonymous while out on bond.

U.S. Magistrate Judge Karen Humphreys said she had reservations about imposing the restriction on Eric J. Rosol, but granted the government’s request barring him from Web communications with the organization that she called an “another world type of group.”

The judge agreed to the ban after Assistant U.S. Attorney Alan Metzger assured her it would be up to the prosecutors – not the federal probation office, which typically oversees defendants – to prove to the court any violation of such a bond condition.

Rosol, 37, of Black Creek, Wis., made his initial court appearance Wednesday on an indictment charging him with one count each of damaging a computer and conspiracy to damage a computer. He remains free on a $25,000 bond after the brief hearing.

Rosol declined comment outside the courtroom. But his defense attorney, Kurt Kerns, denied the allegations in an email sent later.

“Nothing was hacked,” Kerns said. “No protected information was lost. A website received too much traffic for a few minutes. Eric is innocent of any federal crime and we look forward to proving that in Court.”

The indictment alleges that Anonymous asked conspirators in February 2011 to undertake a cyberattack using a tool known as a “Low Orbit Ion Cannon” that could send a high volume of repeated requests to various Koch Industries websites. Numerous conspirators complied, and the company’s main website, Kochind.com, crashed.