Security in any context is critically important. It becomes especially important when applied to the enterprise software solutions that organizations rely upon to make decisions based on sensitive information. Ensuring that the right people have access to the right information at the right time and no one else is a critical part of being able to support decision making. Company performance, employee payroll, sales data, personally identifable information and forecast information are just some examples of company information that are commonly represented within QlikView applications. Security in QlikView is multi-faceted and powerful but is also easy to implement and familiar to IT professionals. This paper will discuss the following topics as applied to QlikView: • Authentication. Who are you? How did you prove it? • Authorization. What are you allowed to see? What are you allowed to do? • Implementation. How do you implement security in QlikView?