IoT Security Challenges in Modern Smart Cities

This paper provides an overview of IoT security challenges in smart cities. We examine cyber threats across the device, network, platform and data layers, analyzing real-world attacks that have disrupted critical municipal services (case studies). Statistics on expected global IoT growth highlight proliferation concerns (statistical data analysis). Key technical vulnerabilities like insecure interfaces, unpatched firmware and inadequate encryption are explored through examples (comparative analysis). A multilayered security approach is proposed encompassing network protections, access controls, data privacy, continuous monitoring and innovative technologies (conceptual framework). Additionally, the paper presents a comparative analysis of wireless protocols used in city IoT deployments (technical comparison). Overall, both practical incidents and technical assessments demonstrate the necessity of cybersecurity strategies tailored to IoT scale and heterogeneity in smart city contexts (supported claims). Recommendations enable resilient innovation.