US Patent 8997248 Securing data

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for securing data. One of the methods includes receiving, by the map reduce framework, data for analysis. The method includes identifying, by the map reduce framework, private data in received data. The method includes encrypting the private data. The method includes storing the encrypted private data in a location separate from the received data. The method includes obfuscating the private data by adding a reference to the location of the encrypted private data in the received data.