Worried about your car being hacked? You should be – no matter where it was made

# Connected Cars Face Real Hacking Threats Across All Manufacturers

Modern vehicles with internet connectivity share a vulnerability that cuts across every automaker: they can be hacked. Security researchers have demonstrated exploits affecting Tesla, Ford, BMW, Hyundai, and other major manufacturers, exposing both safety risks and privacy breaches that owners should understand.

The threat operates on multiple levels. Hackers can access infotainment systems to disable safety features, unlock doors remotely, or track vehicle location. Some attacks compromise braking systems or engine controls, creating genuine physical danger. Others target the personal data stored on connected vehicles, including GPS history, contacts, and payment information linked to in-car services.

The underlying problem stems from how vehicle manufacturers design connected systems. Most add internet connectivity without implementing security standards comparable to those in banking or healthcare. Vehicles communicate with cloud services, mobile apps, and other infrastructure, each connection representing a potential entry point. The complexity compounds when manufacturers use similar chipsets and software platforms across multiple vehicle models, meaning a single vulnerability affects thousands of cars simultaneously.

Researchers at security firms including Upstream Security and Pen Test Partners have revealed specific attack vectors. Some exploits target the vehicle's cellular connection. Others exploit weaknesses in mobile apps that control vehicle functions. A few target the over-the-air update systems automakers use to push software patches, creating a backdoor if not properly secured.

The regulatory response remains fragmented. The European Union implemented the Cyber Resilience Act requiring connected device manufacturers to demonstrate security measures before sale. The United States has proposed standards through the National Highway Traffic Safety Administration but has not yet enacted binding requirements. China mandates data localization for connected vehicles, limiting servers to Chinese territory. No international standard exists.

Automakers have increased security spending since 2020. Tesla established a security team specifically for vehicle software. Ford partnered with security firms to test vehicle systems. BMW created a bug bounty program offering payment for discovered vulnerabilities. These efforts matter but remain inconsistent across the industry.

Owners face practical choices with limited power. Keeping vehicles updated with the latest firmware patches reduces exploitability. Disabling unused connected features, such as remote access apps, shrinks the attack surface. Using strong passwords for mobile apps and cloud accounts prevents account takeovers that could enable remote vehicle control. Monitoring vehicle location data through manufacturer apps reveals if someone is tracking movement.

Dealerships and repair shops present an underappreciated risk vector. When technicians connect diagnostic equipment to vehicles, they can access internal systems. Poorly secured shop networks have facilitated vehicle data breaches in cases documented by researchers.

The landscape will intensify as vehicles become increasingly autonomous. Self-driving systems require continuous data transmission and remote updates. A successful hack targeting autonomous vehicle software could affect many passengers simultaneously. Insurance companies have begun requiring specific security configurations as conditions of coverage.

Buyers shopping for new vehicles should ask dealers directly about security practices. Manufacturers publishing security policies and vulnerability disclosure processes signal credibility. The absence of clear answers suggests weaker security practices. Until regulations establish baseline requirements across the industry, consumer pressure represents the primary leverage for change.