The unprecedented subprime crisis, the deregulation of the market, bank credit and payment mechanisms have facilitated the spread of the risk to the whole of economy. This study examines the issue of the processes set up to save the management of the global banking system. To achieve our goal, we conducted a survey of the various techniques used by banks to prevent global financial crises. At the end of our study, we found that the banks while opting for different policies play the same role and are increasingly hard to avoid risk.