This document discusses the intersection of cloud computing, big data, and security. It explains how cloud computing has enabled big data by providing large amounts of cheap storage and on-demand computing power. This has allowed companies to analyze larger datasets than ever before to gain insights. However, big data also presents security challenges as more data is stored remotely in the cloud. The document outlines both the benefits and risks to security from adopting cloud computing and discusses how big data analytics could also be used to enhance cyber security.