US Patent 10084826 Protocol agnostic security by using out-of-band health check

A computer-implemented method provides an improvement in security breach detection and comprises using a broker computing device, calculating a digital fingerprint of a computing device based on security service data of the computing device, and sending the fingerprint out-of-band for storing in a data repository; using an agent computing device, encrypting current security service data of the computing device to generate encrypted current security service data and sending the encrypted current security service data out-of-band to a gateway computing device; using the gateway computing device, receiving the encrypted current security service data out-of-band and conducting a real-time out-of-band health check of the computing device based, at least in part, on the fingerprint that is stored in the data repository; and using the gateway computing device, in response to conducting the real-time out-of-band health check, determining whether to allow access to in-band communication data.