## 4 Analysis and Results
The table encompasses different stages of the supply chain, including design, suppliers, manufacturers, dealers and consumers, identifying specific factors that impact the adoption of cybersecurity in the automotive sector. Furthermore, it indicates the level of priority (high, medium or low) for each factor's impact on cybersecurity employment in this sector. These levels are determined by factors related to Perceived Ease of Use, Perceived Usefulness, Absorptive Capacity, and Interorganisational Relations. Perceived Ease of Use assigns a high priority to OEMs for challenges such as the vehicle's capacity to adopt cybersecurity systems and the heterogeneity of devices, given their responsibility for integrating complex technologies into diverse components. Increasing connectivity is also a high priority for OEMs and a medium priority for suppliers due to the need for secure connections in V2V, V2I, and V2X systems, as highlighted by [PERSON] et al. [60]. In Perceived Usefulness, the diversity and intensity of attacks are a high priority for OEMs since they directly impact vehicle security and reputation. Suppliers and consumers have lower priorities, focusing on component compliance and usage. Vehicle security requirements follow a similar pattern, emphasizing OEMs' role in ensuring safety standards. Absorptive Capacity is a medium priority for dealers and suppliers, reflecting their need to implement cybersecurity procedures effectively, as noted by [PERSON] et al. [1]. Their role is crucial but less about innovation compared to OEMs. \begin{table}
\begin{tabular}{c c c} \hline
**TAM Model Factor** & \multicolumn{3}{c}{**Variables of Maintenance of the Automotive Sector**} \\ \hline \multirow{6}{*}{Perceived Ease of Use} & \(\bullet\) & Vehicle’s capacity to adopt cybersecurity systems \\  & \(\bullet\) & Heterogeneity of devices, components and vehicle variants. \\  & \(\bullet\) & Increasing connectivity of vehicles, such as V2V, V2I \\  & & and V2X. \\  & \(\bullet\) & Costs of cybersecurity technology. \\  & \(\bullet\) & Lifecycle of vehicle. \\ \hline \multirow{2}{*}{Perceived Usefulness} & \(\bullet\) & Diversity and intensity of attacks. \\  & \(\bullet\) & Vehicle Security requirements \\ \hline \multirow{2}{*}{Absorptive Capacity} & \(\bullet\) & Dealers’ and Suppliers’ capability to follow procedures and processes of cybersecurity. \\ \hline \multirow{2}{*}{Interorganisational Relations} & \(\bullet\) & Standards in cybersecurity \\  & \(\bullet\) & Collaborations in the supply chain. \\ \hline \end{tabular}
\end{table} 
Table 7: Main Factors of Maintenance of Cybersecurity of Vehicles in the Automotive Sector. Finally, Interorganisational Relations prioritise OEMs and suppliers for establishing and adhering to cybersecurity standards, facilitating cooperation across the supply chain. One critical aspect of this collaboration is the cybersecurity dependencies at the component level, such as the role of the Hardware Security Module (HSM). The HSM is a dedicated hardware component designed to provide secure cryptographic functions, ensuring that sensitive data, such as cryptographic keys and security credentials, are stored and processed in a secure environment. The security of an automotive module is often dependent on the integrity of such components, which are supplied by third-party vendors. If a vulnerability is introduced within the supply chain, either through the HSM or other security-critical components, it can compromise the security of the entire vehicle. Cooperation is essential for maintaining cybersecurity integrity, with dealers playing a supportive role marked as medium priority.