Banks get hacked, governments get hacked, purveyors of malware get hacked, sleazy websites get hacked.... any reason to expect that self-driving cars won't get

Banks get hacked, governments get hacked, purveyors of malware get hacked, sleazy websites get hacked.... any reason to expect that self-driving cars won't get hacked? Something as complex as autonomous pilot software surely has plenty of attack surface, which will be promptly exploited by scum like HackingTeam to provide remote control/monitoring abilities to shady customers.