A device scanner system at a security checkpoint queries a powered on electronic device for device-reported data via a network connection. The device-reported data includes the operational status of at least one component of the electronic device, a configuration of the electronic device, and a current ownership of the electronic device. Responsive to receiving the device-reported data, the device scanner system retrieves expected data for the electronic device. The device scanner system assigns a security level to the electronic device indicating whether the device-reported data matches the expected data, such that the electronic device is screened based on data reported by the powered on electronic device.