Cyber-Physical Systems

Cyber-Physical Systems (CPS) are complex systems that integrate computation, communication, and physical control. The core concept involves a tight feedback loop where sensors monitor the physical world, data is transmitted and analyzed via networks, and actuators then control or influence physical processes. Unlike traditional IT systems that primarily manage data, a cyberattack on a CPS can cause direct physical damage, such as disabling a vehicle's braking system. In the automotive industry, connected vehicles are quintessential CPS. Consequently, international standard ISO/SAE 21434 and UN regulation UNECE R155 mandate rigorous cybersecurity risk management throughout their entire lifecycle to safeguard road users from cyber threats.

In enterprise risk management, especially for automotive manufacturers, managing CPS risk follows a structured process. Step one is Threat Analysis and Risk Assessment (TARA), as required by ISO/SAE 21434, to identify CPS components (e.g., ECUs, sensors), analyze potential attack vectors, and quantify their impact on safety and privacy. Step two is designing and implementing security controls based on TARA findings, applying a defense-in-depth strategy that includes Intrusion Detection and Prevention Systems (IDPS), encrypted communications, and secure software updates. Step three is establishing continuous monitoring and incident response, typically through a Vehicle Security Operations Center (VSOC), to monitor the fleet and execute response plans. This ensures compliance with UNECE R155 and can increase audit pass rates by over 95%.

Taiwanese enterprises face three main challenges in implementing CPS security. First, complex supply chain security integration due to varying cybersecurity maturity among suppliers. The solution is to establish cybersecurity agreements with suppliers based on ISO/SAE 21434 and require evidence of secure development. Priority action: audit tier-1 suppliers within 6 months. Second, a shortage of interdisciplinary talent with expertise in IT, OT, and automotive engineering. The solution is to build internal cross-functional security teams and collaborate with academic institutions. Priority action: launch an internal train-the-trainer program within 3 months. Third, pressure to comply with new regulations like UNECE R155. The solution is to adopt automated tools for threat modeling and risk assessment to accelerate development. Priority action: pilot a TARA tool within 6 months.

Winners Consulting specializes in Cyber-Physical Systems for Taiwan enterprises, delivering compliant management systems within 90 days. We have successfully served over 100 local companies. Request a free consultation: https://winners.com.tw/contact