Disclosed herein are systems and method for forming and executing a backup strategy. In one aspect, an exemplary method comprises, for each file of files from one or more data sources that is being evaluated to form the backup strategy for the file, updating a frequency database, evaluating a uniqueness for the file stored at a data source of the one or more data sources by comparing at least a portion of data of the file to the frequency database, categorizing the file into a hierarchy of logical types according to properties of the file, and forming the backup strategy for the file according to the uniqueness and categorization of the file.