Action detection and network security policy enforcement based on wireless-transmission interference patterns

Abstract

Systems of the present disclosure can detect user activities on endpoint devices based on the interference patterns those actions produce in wireless transmissions between those endpoint devices and another device (e.g., an edge device operating as a web security gateway). A web security gateway sends time-series data describing interference on wireless transmissions sent from, or received by, an agentless endpoint device to a network security service. In response, the network security service uses a machine-learning model to infer a type of an action that occurred on the agentless endpoint device concurrently with the wireless transmissions. The network security service sends an indication of the action type to the web security gateway. The web security gateway applies a network security policy to the action or a network communication associated therewith.