In embodiments of the present invention improved capabilities are described for identifying unauthorized endpoints. The present invention includes computer implemented methods and systems for actively polling and monitoring network devices, such as network routers and switches, to obtain information on any or all of the endpoints on a network with which the router or switch may have communicated. Address information acquired through polling is compared with an authorized endpoint list, which is generated from information reported to the store by security agents on the authorized endpoints and which is stored in a security compliance store, in order to identify unauthorized endpoints. Methods and systems disclosed herein also include remediation measures to be taken on the unauthorized endpoints. Related user interfaces, applications, and computer program products are disclosed.