Ensuring Autonomous Mobility Meets Cybersecurity Standards

Tier IV is a global leader in autonomous driving software, developing open platforms that power advanced autonomous mobility programs. As the company prepared for regulated, real-world deployments of autonomous vehicles in Japan, cybersecurity quickly emerged as a critical gating factor.
Tier IV needed a way to operationalize cybersecurity across its autonomous software stack—ensuring continuous compliance with UN-R155 and ISO/SAE 21434 while maintaining development agility. Manual processes and static documentation were not sustainable for an environment defined by constant software change.
PlaxidityX addressed this challenge by deploying its cybersecurity platform on Amazon Web Services, enabling a cloud-native, automated approach to security management. Leveraging AWS managed services, the platform orchestrates core cybersecurity activities—including TARA workflows, vulnerability management, compliance evidence generation, and incident readiness—within a scalable, event-driven architecture.
AWS services such as AWS Lambda and managed messaging components enable security workflows to run continuously and adapt as software evolves, while centralized data handling supports consistent reporting and audit readiness. This allows Tier IV to manage cybersecurity as an ongoing operational function rather than a one-time certification effort.
PlaxidityX enabled Tier IV to establish a scalable cybersecurity foundation for regulated autonomous deployments.