The DOJ announced in a press release that Kyoungwon Pyo, then senior vice president of an affiliate of Nautilus Hyosung Holdings Inc., agreed to plead guilty to two counts of obstruction of justice related to the DOJ's 2008 investigation of Nautilus' proposed acquisition of competing ATM manufacturer Triton Systems of Delaware Inc. The DOJ alleged that Pyo altered and directed his subordinates to alter existing corporate documents, minimizing the competitive effect of the proposed acquisition, before they were submitted to the DOJ and the FTC. These altered documents were submitted as part of Nautilus' HSR filing and in response to a later document request during the DOJ's investigation of the deal.

As part of the plea agreement, subject to court approval, Pyo agreed to serve a five-month jail term.

In October of last year, Nautilus entered into a guilty plea and agreed to pay a $200,000 criminal fine for its role in the obstruction of justice charges.