An exchange processing system may include multiple exchange components that are respectively included in multiple computing systems. A central exchange component may receive a request to enable access to secured data, the request having identity data encrypted via an identity encryption module and inquiry data encrypted via a first request encryption module. The central exchange component may decrypt the identity data via the identity encryption module, and decrypt the inquiry data via the first request encryption module. Response data may be generated from secured data that is selected based on the identity and inquiry data. The central exchange component may encrypt the response data via a second request encryption module and re-encrypt the identity data via the identity encryption module. The encrypted identity and response data may be provided to a second remote exchange module.