The marriage information company Duo Information Co., Ltd. was fined 345 million won by the Fair Trade Commission for making false advertisements such as 'the most professional and prestigious university members in the industry'. Duo claimed that the number of professionals and prestigious university members was the highest in the industry through internet and outdoor advertising, but this was a statistic arbitrarily calculated without objective grounds. It also conducted false advertising such as 'the only external audit target corporation in the industry' and 'the only domestic Financial Supervisory Service electronic disclosure company'. Duo also exaggerated the actual number of managers in its advertisements. The Fair Trade Commission emphasized the importance of providing accurate information in the marriage information industry and plans to continue monitoring unfair advertising.