A Nebraskan native charged with taking part of  a massive cyber-attack against the Scientology website will be spend the next year behind bars.

The 20-year-old Brian Thomas Mettenbrink will plead guilty to the charge of unauthorized access of a protected computer for his involvement in the denial of service (DoS)attack.

As part of his plea, Mettenbrink will serve one year in prison, the U.S. Department of Justice said.

A DoS attack coordinates legions of computers to visit a targeted website at once, overwhelming its server and leaving the site inaccessible to normal visitors.

Mettenbrink admitted being involved in that attack, saying that he downloaded software from an Anonymous Internet message board that he used to help overwhelm the Scientologists' Web sites.

Last year, Dmitriy Guzner, a 19-year-old from Verona, New Jersey, plead guilty to charges related to the attack. He was sentenced to one year in prison.