1. A method for controlling access to encrypted files, the method comprising: storing, in a database, priority information assigned to a plurality of applications and a plurality of file access policies that are respectively assigned to the priority information for the plurality of applications, where the plurality of file access policies each specify a different rule for accessing an encrypted file, including (i) providing access to the encrypted file, (ii) decrypting the encrypted file and providing an access to a decrypted file, and (iii) blocking access to the encrypted file; detecting, via a processor, a request from a first application of the plurality of applications to access the encrypted file; identifying the first application that requested access to the encrypted file including identifying, in the database, a priority assigned to the first application, and, the file access policy assigned to the priority of the first application; identifying a child application activated by the first application for accessing the encrypted file including identifying, in the database, a priority assigned to the child application; determining a condition associated with the request from the first application, the condition relating to at least one of a time criteria and a security policy relating to the request; selecting a first priority selection rule if the condition satisfies a first rule selection condition of whether the request by the first application is made during a first time of day and a second priority selection rule if the condition satisfies a second rule selection condition of whether the request by the first application is made during a second time of day different than the first time of day; if the first priority selection rule is selected, controlling access to the encrypted file by the child application based on the access policy, assigned to the priority of the child application; and if the second priority selection rule is selected, controlling access to the encrypted file by the child application based on the file access policy, assigned to the priority of the first application that activated the child application.