1) CIMB bank in Malaysia had a large social media presence and wanted to leverage big data from Facebook to improve their banking services and target marketing campaigns. 2) They analyzed correlations between customers' Facebook likes and debit card transaction data to identify spending patterns and target promotions. 3) CIMB then expanded their analysis to credit card transaction data to segment customers and identify opportunities to increase card usage and balances through targeted merchant offers. 4) CIMB rebuilt their big data analytics platform to more quickly generate actionable insights from their large customer data sets and enhance their business capabilities across various areas including risk management, sales, and customer analytics.