US Patent 11582248 Data breach protection

A computer implemented method to detect a data breach in a network-connected computing system including generating, at a trusted secure computing device, a copy of data distributed across a network; the computing device accessing sensitive information for the network-connected computer system and searching for at least part of the sensitive information in the copy of the data; in response to an identification of sensitive information in the copy of the data identifying the sensitive information as compromised sensitive information.