Can Someone Really Hack Your Car? Understanding Automotive Cybersecurity

Modern vehicles function increasingly as computers on wheels, integrating connected entertainment systems, smartphone apps, and wireless features. While this connectivity offers convenience, it raises questions about whether vehicles can be vulnerable to cyberattacks. Cybersecurity research and industry reports indicate that certain vehicles can be vulnerable under specific conditions, though risks vary widely by make, model, year, and built-in security architecture.

Automotive cybersecurity is an evolving field. In 2015, researchers demonstrated remote interference with certain functions of a Jeep Cherokee by exploiting a connected entertainment system vulnerability, an effort that contributed to a subsequent vehicle recall involving approximately 1.4 million vehicles. A 2019 U.S. Senate hearing further highlighted the importance of vehicle cybersecurity.

Common Exploit Methods

Security vulnerabilities and threat vectors vary in their requirements and potential consequences:

• Keyless-Entry Attacks: Signal-relay techniques can sometimes trick a vehicle into detecting a nearby key fob, potentially permitting unauthorized entry or starting.
• Connected Apps and Accounts: Compromised accounts, weak passwords, or flaws in online manufacturer services can expose personal information or remote features.
• Infotainment Vulnerabilities: Wireless interfaces and entertainment systems may present entry points into vehicle electronics if software bugs exist.
• Diagnostic Ports: Physical access can sometimes allow interaction with electronic systems, depending on protective isolation.
• Software Flaws: Unpatched software bugs can create temporary vulnerabilities until manufacturers issue updates or fixes.

Practical Steps for Vehicle Security

Drivers can take several practical measures to reduce common security risks:

• Keep vehicle software updated and address manufacturer recalls promptly.
• Use strong, unique passwords and multifactor authentication for connected-car accounts.
• Review and manage authorized users on vehicle mobile apps.
• Follow manufacturer guidance regarding keyless entry, such as storing key fobs away from exterior doors or utilizing signal-blocking pouches.
• Avoid connecting unknown devices or allowing untrusted access to the diagnostic port.

Drivers can verify manufacturer notices and software updates by checking official automotive brand portals, contacting authorized dealerships, or reviewing official safety recall databases. Not every electrical glitch or sensor failure indicates a cyberattack; standard mechanical or software bugs are common causes of unusual vehicle behavior.