For the moment

the research of big data security fi eld mainly focused on the technology solutions of big data infrastructure security and privacy protection. It lacks a comprehensive discussion of security control mechanism for big data external sharing from the management point of view. This paper analyzes the problems and causes of external data sharing faced by telecom operators in big data environment. According to the business characteristics and technical structure

the paper summarizes the key links of external partner supervision. From the point of management

it provides three optimization proposals of safety control mechanism. It provides constructive reference for other telecom operators or large stateowned enterprises to big data security management.