Abstract: A system, apparatus and method is described for a security platform and/or identity platform for identifying, notifying, reporting and blocking pass-the-hash attacks and the anomalous or improper use of identity information on computer networks. The system, apparatus or method follows a policy of zero-trust, and does not rely on any client or server information to verify or confirm identity. Instead, the system, apparatus or method of the invention monitors communications between network devices, and when a first device transmits a communication of interest to a second device, the system, apparatus or method of the invention queries the first device directly to determine whether the transmission is authorized.