Vehicle cybersecurity vulnerabilities could impact a vehicle's safe operation. Therefore, engineers should ensure that systems are designed free of unreasonable risks to motor vehicle safety, including those that may result due to existence of potential cybersecurity vulnerabilities. The automotive industry is making vehicle cybersecurity an organizational priority. Prioritizing vehicle cybersecurity also means learning about vehicle hacking techniques in order to ensure that systems will be reasonably safe under expected real-world conditions, including those that may arise due to potential vehicle cybersecurity vulnerabilities from hacking the CAN communications or OBD-II interface. The automotive cybersecurity environment is dynamic and is expected to change continually and, at times, rapidly. Developing a basic understanding of car hacking can provide a good foundation for developing approaches to vehicle cybersecurity.