A method of performing a query on a cube of data is provided. A cube of data is distributed onto a plurality of computing devices with each computing device of the plurality of computing devices storing a different portion of the cube of data. A perturbation rule configured for application to the cube of data and associated with a user is received. A process space associated with the user is created. The received perturbation rule is compiled in association with the created process space. A query on the portion of the cube of data stored at the computing device is received. The received query is associated with the created process space. The query is processed while applying the compiled perturbation rule to data extracted from the portion of the cube of data stored at the computing device. A result of the processed query is sent to a requesting computing device.