Methods, systems, and techniques for securing access to stored data are provided. Example embodiments provide a Storage Management System (“SMS”) that is configured to facilitate protected information sharing. The SMS may restrict access to shared information based on one or more criteria that validate an entity's right to access the information. For example, the SMS may restrict access to entities that are located in a particular geographic region, that are using a particular type of hardware or software, that hold particular credentials, or the like. In some cases, the SMS may require that an entity's claim to meet on or more required criteria be validated by a trusted third party.