Roh criticized the court's ruling as "anachronistic," saying that any citizen can easily distribute or publish information online. He also said his more important role as a lawmaker was to fight against corruption at powerful groups in South Korea including prosecutors, who are the only South Korean officials who can charge suspected criminals and supervise police investigations.
Roh said he did not regret his decision to publish the information.
"If I go back to eight years ago, I would still do the same thing," he said in a statement after the ruling.
Youkyung Lee can be reached at Twitter: www.twitter.com/YKLeeAP