I need a problem statement for this scenario

Scenario:

Banking institutes are becoming more and more susceptible to fraud. Over the last few months, there has been an increase in fraudulent transactions at other financial institutions. This has led to customers personal information and financial accounts being compromised. We at La Banca Central Bank are taking these recent incidents seriously. We have set a goal to do all that we can to monitor transactions for suspicious activity. Our goal is to detect, and ultimately prevent, fraudulent transactions. To do this, we need to determine the most prevalent ways in which we can detect fraud using various transactional data signatures.