The PBAS requires interacting with the braking subsystem. The actual management between the systems is outside the scope of the system, however the backup system will be connected to the media center that most likely exists within the vehicle. Most media centers allow for passengers to plug in devices for various applications. This interaction between systems could allow hackers to upload malicious programs onto personal devices that remain dormant until plugged into a vehicle. Once connected, the programs may modify the system behavior or critical data. Therefore, this process could inadvertently allow indirect control to the braking subsystem. This occurrence is critical since braking in various driving conditions could lead to death and injuries to passengers and pedestrians. In addition, this will allow hackers the ability to control traffic and potentially cause property damage. Fortunately, with proper privilege management on all subsystem inputs, outputs, and manipulated data this type of attack could possibly be prevented.