The collection and analysis of big data have notably transformed e-commerce operations, allowing businesses to make informed decisions in areas like marketing, customer service, and supply chain management. Big data, which includes both structured and unstructured information such as customer details and purchasing patterns, provides valuable insights that help e-commerce platforms optimize their operations and personalize their offerings. However, challenges such as irrelevant data collection, data storage and security, compliance with regulations, and the need for real-time analysis complicate the effective use of big data. Despite these challenges, there are significant opportunities for e-commerce businesses to monetize their data by becoming data service providers, offering insights and analytics to other companies. This strategy not only generates additional revenue but also strengthens market positioning. Solutions like Duality Tech's platform enable secure and privacy-compliant data collaboration, allowing businesses to harness big data's potential without being experts in cryptography or privacy engineering.