A processor of a first loss-prevention configured mobile device detects a second loss-prevention configured mobile device in proximity of the first loss-prevention configured mobile device. Responsive to detecting the first and the second loss-prevention configured mobile devices in proximity, spatial separation of the first loss-prevention configured mobile device from the second loss-prevention configured mobile device beyond a configured separation distance is detected. A voice of an owner of the second loss-prevention configured mobile device is detected at the first loss-prevention configured mobile device located beyond the configured separation distance. An alert is generated at the first loss-prevention configured mobile device that indicates that the owner of the second loss-prevention configured mobile device is separated from the second loss-prevention configured mobile device.