Efforts to corruption control are underway in many countries. It is widely held that in reducing corruption practices, good faith whistleblowers play an important role. The primary focus of this protection of whistleblowers has as one of the alternatives for removing efficiently corruptions. The patterns on Korean corruptions were identified as four: Power, structural, institutional, and cultural. Past studies have reported that with an exception of the cultural corruption, the protection act of whistleblowers was successful in controlling these kinds of corruption practices. Many countries, including United States, Taiwan, singapore, have made much efforts in combting corruptions. This study reports on current developments in each of these countries. According to their experiences, much of the pervasive corruption facing the governments could best be handled with the protection of whistleblowing activities. But in the case of Korea, the difficulty stems from the traditional culture looking down on the informers blowing whistles. The author agrees that it is necessary for the government to make whistleblowing protection efforts for employee rights as well as corruption control, although the approach is not that much effective as expected. Furthermore, the paper concludes by arguing in detail that at the present time, the most desirable choice is to enact the corruption prevention law which especially includes the articles protecting responsible whistleblowers. But, of course, it is not a sufficiently complete alternative to the issue of corruption control.