A system includes an authorization token with a memory configured to store user attributes including a record of previous usage of the data store by the user, pre-authorization data for the user, and an access signature for accessing contents of a data store. The authorization token receives an authorization request. Session attributes are collected associated with a file path used by the user to request access to a file. A consistency measure is determined associated with whether the file path used by the user to request access to the file is consistent with a previous file path stored in a record of previous usage of the data store by the user. In response to determining that the consistency measure is greater than a threshold value, the access signature is provided to the data store, thereby granting the user access to the file.