A method and system for anonymizing data to be stored in a destination computing device is disclosed. A first data store is provided in a first user computing device, the first data store including a file folder designated as a first sync folder. A destination data store is provided in a destination computing device, the destination data store including a file folder designated as a destination sync folder. A file stored in the first sync folder is also stored in the destination sync folder and the file stored in the destination sync folder is anonymized before transmission of the file to the destination computing device over a network for storage in the destination sync folder.