Against the backdrop of the increasing popularity of global digitization, smart cities, as a new concept in urban development, are profoundly changing people's lifestyles and urban governance patterns. However, with the widespread application of projects such as Hangzhou's "City Brain" and Shenzhen's intelligent transportation, data security has become a concern. Our research focuses on potential legal or technical vulnerabilities in data collection, sharing, supervision, and other links during smart city construction. Through literature research, case analysis, and other methods, we analyze the current data security issues. The study finds that the "Personal Information Protection Law" cannot effectively play its role in smart city scenarios. There are sometimes misunderstandings in data sharing between departments, and the responsibilities of various subjects are unclear in division of labor. Therefore, our research proposes solutions from three aspects: improving laws and regulations, unifying technical standards, and innovating supervision mechanisms, to better balance technological development and protection of individual rights.
Smart City; Data Security; Personal Information Protection; Legal Regulation; Regulatory Coordination.
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