Security and privacy issues are magnified by the volume, variety, and velocity of Big Data. Large-scale cloud infrastructures, diversity of data sources and formats, the streaming nature of data acquisition, and high volume inter-cloud migration all create unique security vulnerabilities.1
Until recently, “big data” referred almost exclusively to data in large, Google-scale data centers. The number of organizations worldwide, both private sector and government, that are now collecting massive amounts of data is growing exponentially. Facebook and Twitter are global, healthcare records are becoming digital, and we are witnessing an explosion of developments with the Internet of Things (IoT), everyday objects equipped with sensors that can record, send, and receive data over the Internet and that are expected to number 25 billion by 2020.