Clear evidence of the fierce competition between Walmart and Amazon when Walmart advises its tech suppliers not to use AWS. There is more to this though. Does AWS respect the privacy of not only the data of suppliers but also the tools and techniques used? Good reason for Walmart to be suspicious. Amazon got a leg up years ago as big corporations used Amazon’s digital services when they were just selling books. They used this experience with companies to learn and opportunistically take advantage of the expertise of others.