Ensuring complete trustworthiness in managing personal data within smart cities like The Line requires robust privacy regulations, transparent governance structures, and active user participation. Implementing strict data protection laws that prioritize individual rights over commercial interests is essential. Smart cities should provide clear information on how personal data will be collected, used, and shared while giving users full control over their information through consent management platforms. Regular audits, oversight mechanisms, and accountability measures can help monitor compliance with privacy standards and prevent misuse of sensitive data. Building a culture of transparency and accountability within the city's operations is crucial to fostering trust among residents regarding their personal information.