Bank of America Corporation
Network device isolation for access control and information security

Abstract:

A system that includes a switch, a network authentication server (NAS), and a threat management server. The NAS sends a device identifier for an endpoint device to the threat management server in response to the device connecting to a port on the switch. The threat management server determines the endpoint device is present in a device log file. The threat management server determines the number of times the endpoint device has failed authentication exceeds a first threshold value within a first time period and the number of times the endpoint device has passed authentication is less than a second threshold value within a second time period. The threat management server determines the endpoint device does not have a lease for the port on the switch and sends a reroute command to the switch to transform the destination of traffic associated with the endpoint device to a safe zone.