Public confidence is a key for global financial system, but during the last decade, public confidence on financial system is losing rapidly. The Global Financial Stability Report in 2012 warned that confidence in the global financial system has become very fragile. It is explicable from those scandals happened in 2012 (IMF, 2012). More than 8 financial scandals happened during 2012, several world known banks was involved such as HSBC, SCB, JP Morgan and Barclays etc. This paper provides a comparative analysis of three scandals happened recently, Lehman Brothers, HSBC and Barclays. The reputation of global financial system has badly shaken by each of these scandals. From the cases, some commonalities were found. Among those cases, the culture of industry and company provided opportunities for the fault to arise. In this paper, I will examine the cases to point out how the company culture triggered scandals. It is recommended paying more attention to develop a stronger moral sense to public and create the right culture for the industry to restore public confidence.