Testing a single ECU can be sufficient if the tests are focused on purely CAN physical layer specifics or other single-ECU session-based protocols, such as Unified Diagnostic Services (UDS)...
In light of recent security standards and regulations, the automotive cybersecurity industry demands more efficient and widespread cybersecurity testing of automotive products, emphasizing the need for new testing methodologies.
A proactive and holistic application security strategy is critical in securing applications, regardless of their type, to defend against potential threats and align with business requirements.