Systems, methods and apparatuses to recognize a threat to a vehicle from a distance and generate alarms or alerts in response. For example, a camera of a vehicle in a parking state can capture an image of the surrounding of the vehicle. When a person approaching the vehicle from a distance is identified from the image, an artificial neural network evaluates, based at least in part on one or more images from the camera, the level of threat from the person approaching the vehicle. In response to the threat level being above a threshold, the vehicle can generate an alarm to deter illegal activities and/or send an alert to a remote device, such as a mobile device of an owner, driver, authorized user, or security agent.