The emergence of smart cities and sustainable development has become a globally accepted form of urbanization. The epitome of smart city development has become possible due to the latest innovative integration of information and communication technology. Citizens of smart cities can enjoy the benefits of a smart living environment, ubiquitous connectivity, seamless access to services, intelligent decision making through smart governance, and optimized resource management. The widespread acceptance of smart cities has raised data security issues, authentication, unauthorized access, device-level vulnerability, and sustainability. This paper focuses on the wholistic overview and conceptual development of smart city. Initially, the work discusses the smart city idea and fundamentals explored in various pieces of literature. Further various smart city applications, including notable implementations, are put forth to understand the quality of living standards. Finally, the paper depicts a solid understanding of different security and privacy issues, including some crucial future research directions.

翻译：智慧城市与可持续发展的兴起已成为全球普遍接受的城市化形式。智慧城市发展的典范得以实现，得益于信息和通信技术的最新创新性融合。智慧城市的居民能够享受智慧生活环境、泛在连接、无缝服务访问、通过智慧治理实现的智能决策以及优化资源管理带来的益处。智慧城市的广泛接受也引发了数据安全问题、身份认证、未授权访问、设备级漏洞以及可持续性等挑战。本文聚焦于智慧城市的整体概述与概念发展。首先，工作讨论了各种文献中探讨的智慧城市理念与基础。进而，提出了包括显著实施案例在内的各类智慧城市应用，以理解其生活标准质量。最后，本文描绘了对不同安全与隐私问题的坚实理解，并包括一些关键的未来研究方向。