Özarpa, C.Avci, I.Kinaci, B.F.2024-09-292024-09-2920232522-8595https://doi.org/10.1007/978-3-031-09729-4_7https://hdl.handle.net/20.500.14619/9669In recent years, the development of technology has contributed to the development of smart networks and cities. Internet of Things (IoT) technologies are used in smart cities and grids, and the security weaknesses of these technologies on communication protocols gain importance in terms of cybersecurity. Bus stops, traffic lights, public vehicles, street lamps, and similar materials in smart cities are designed by following the developing technology. In addition, the use of smart grids in the field of energy, such as natural gas, electricity, and water, has been increasing all over the world in recent years. Also, the rise of IoT can create wide vulnerabilities that cybercriminals and other malicious individuals can exploit. Neglecting cyberattacks poses a serious risk, as smart cities and grids are designed to increase productivity and efficiency in terms of well-being. Today, smart city systems have a very serious potential cybersecurity vulnerability, and these cyber risks can be reduced or eliminated with a few measures. With the development of technology, the cybersecurity problems of the systems used in smart networks and cities have become important. In this study, 17 cyberattacks in smart cities, grids, and used IoT systems, security vulnerabilities that may be encountered in these systems, and security measures that can be taken against them are given in detail. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.eninfo:eu-repo/semantics/closedAccessCyberattacksCybersecurityIoT SecuritySmart CitiesSmart GridsBook Part10.1007/978-3-031-09729-4_72-s2.0-85138495828131Q4117