PlaxidityX Automotive Penetration Testing is a professional security testing service focused on identifying vulnerabilities in vehicle software and hardware throughout the development lifecycle. The service is delivered by automotive cybersecurity specialists with expertise in ECU architectures, automotive protocols, hardware/software, and vehicle networks. The service covers four primary areas: ECU-Level Penetration Testing: Identifies vulnerabilities in ECU interfaces, communication channels, and security measures using knowledge of automotive protocols and hardware/software. Supports compliance processes for ECU cybersecurity. Vehicle-Level Penetration Testing: Aligned with UNR 155 requirements, this assesses the full vehicle electrical/electronic architecture to identify threats that could exploit safety-critical components or break network segregation. Prepares OEMs for vehicle type approval. Code Review: Manual and automated analysis of a codebase to verify adherence to secure development practices. Identified vulnerabilities or flaws are reported with suggested remediations. Fuzz Testing: Combines proprietary technology with automated, scalable fuzzing across vehicle networks, protocols, and interfaces. Targets zero-day vulnerabilities and configuration errors, generating reports for error correction and type approval. Amazon Alexa Certification: As an Amazon-certified security lab, PlaxidityX conducts security assessments against AVS (Alexa Voice Service) security requirements for automotive Alexa integrations, scoring the integration and preparing submission reports for Amazon. Additional service models include Cybersecurity Department as a Service, staff outsourcing, customer-defined scoping, TARA (Threat Analysis and Risk Assessment), and UNR 155 / ISO 21434 compliance consulting.