US Patent 10333901 Policy based data aggregation

A method for data aggregation of declassified sensitive data may include obtaining a policy associated with an isolated region of a service provider. The policy may identify a plurality of rules for declassifying sensitive data accessible within the isolated region. At least a portion of the plurality of rules identified by the policy may be obtained. A file with the sensitive data may be identified, the file being generated within the isolated region. An output file may be generated based on applying the obtained rules to the file. At least a portion of the sensitive data may be filtered out using the obtained rules. The generated output file may be provided for access outside of the isolated region. The sensitive data may be inaccessible by at least another region of the service provider.