Big Data has been at the heart of the Smart City, the Internet of Things, and Social Communities, all of which need to offer services, intelligence, and security. We still need to develop appropriate solutions for the management of Big Data in a secure way. This workshop aims to discuss better solutions for the management and security of Big Data, which may include (1) system design for Big Data Security, (2) state-of-art data engineering schemes for Big Data Security, (3) service design and use cases for Big Data Security, and (4) application-oriented security systems for Big Data.