The present disclosure provides systems and methods to optimize data backup in a distributed enterprise system by firstly generating a set of unique files from all the files available in the enterprise. A backup set comprising files to be backed up are then generated from the set of unique files and backup is scheduled in the order in which the files to be backed up are identified. Unique files are generated based on file sharing patterns and communications among users that enable generating a social network graph from which one or more communities can be detected and deduplication can be performed on the files hosted by client systems in these communities thereby conserving resources.