CASE STUDY Mitsubishi Motors
Mitsubishi Motors’ cyber shift to safer, smarter mobility
Moving from reactive compliance to efficient, proactive resilience through a secure connected services platform
3-minute read
As the automotive industry accelerates the shift to technologies such as software-defined vehicles, innovation is no longer just about performance or design—it’s also about trust. With vehicles becoming more connected, cybersecurity is playing a growing role in delivering that trust by assuring customers their vehicles and data are protected from digital threats.
Delivering customer trust and enabling advanced digital experiences also means contending with sophisticated cyber threats and meeting evolving regulations—including UN Regulation No. 155, which mandates a cybersecurity management system across the vehicle lifecycle, and TARA (Threat Analysis and Risk Assessment), a methodology for identifying and evaluating threats.
But with limited local expertise in this emerging field—where automotive and cybersecurity knowledge must go hand in hand—Japan faces a talent gap. As a result, applying TARA often relies on individual assessors, resulting in inconsistent quality.
Key Driver
90%
Of CEO’s say cybersecurity helps build consumer confidence, making it a key driver of brand loyalty and competitive advantage
Accelerating compliance and safer mobility
Mitsubishi Motors is actively exploring new approaches to connected mobility and cybersecurity, seeking to optimize its approach to identifying and managing risks in response to the evolving regulatory and threat landscape. With each new digital feature—such as remote vehicle control services and real-time security alerts on Mitsubishi Connect—teams faced the growing challenge of conducting thorough risk assessments to meet the global UN-R155/TARA standards. These assessments often produced thousands of unique threat scenarios, making it difficult to track, prioritize, and reuse findings—bringing the risk of slowing innovation and stretching already limited resources.
Building on a long-standing relationship, Mitsubishi Motors partnered with Accenture to realize a “shift-left” approach in connected vehicle service security using a systematic, repeatable approach.
By utilizing industry-leading TARA platform services, Mitsubishi Motors has reduced the duration and cost of traditional risk analysis by about half, accelerating the delivery of connected services and ensuring compliance with global regulations.
Key Outcome
~50%
Reduction in the duration and cost of traditional risk analysis.
We’re strengthening cybersecurity to support safer, smarter mobility for our customers.
Hideaki Inoue / Assistant General Manager, Mobility Business, Mitsubishi Motors
Shifting gears on cybersecurity
Accenture and C2A Security are modernizing automotive cybersecurity for Mitsubishi Motors, replacing outdated Excel-based methods with a dynamic, managed security platform. After a rigorous selection process, Accenture chose C2A Security's "EVSec Analysis" for its superior quality, cost-efficiency, and speed.
The platform's flexibility and its unique capability to conduct integrated analysis of both on-board and off-board systems were decisive factors.
Navigating the future of mobility with confidence
Looking ahead, Mitsubishi Motors aims to expand its cybersecurity capabilities to support emerging business areas such as energy management, battery reuse, and data-driven services. The company is also exploring advanced approaches to further enhance agility, insight, and risk management in the future.
By embedding cybersecurity into every layer of its connected vehicle strategy, Mitsubishi Motors is committed to protecting customers and earning their trust. This commitment reinforces the brand’s reputation for secure innovation and positions Mitsubishi Motors to help shape the next era of mobility.
