Fecha de publicación: 13/11/2014 Fuente: Wipo "BigData" Disclosed herein are a big data extraction system and method. The big data extraction system includes a data buffer unit for hooking the file message of an operating system, extracting some data from the original data based on the hooked file message, and storing the extracted some data in memory, a data generation unit for generating hash data of the stored some data, verifying the hash data of the stored some data, and generating regeneration data corresponding to the original data based on a result of the verification, and a data storage unit for storing the regeneration data.