Big Data in Banking Case Study - Risk Management UOB Singapore The United Overseas Bank (UOB) Limited, the third-largest bank in SouthEast Asia, has leveraged Big Data to direct risk management, the biggest area of concern for any banking organization. Keeping the same in mind, UOB took a gamble with employing a risk management system that is based on Big Data. Calculating the value of risk is a time-consuming effort, usually taking up to 20 hours. Through its Big Data risk management system, UOB was now able to do the same task in just a few minutes and with the aim of doing it in real-time pretty soon