A system, method, and device for protecting a vehicle occupant over a computerized network. There is an electronic seat pad with an occupant sensor, a driver sensor control module that detects proximity a driver's portable electronic computing device relative to the vehicle; and a key-location sensor that detects proximity of a vehicle key to the vehicle. There is a system management module that determines alert statuses and sends alert and safety notifications to a remote notification device, which automatically registers an alert if a threshold level of safety notifications are not received. There may be pressure, temperature, signal strength, CO2, IR, and other sensors. There is a state library that may be updated to identify additional dangerous states based on sensor readings.