Smart cities are increasingly being viewed as a solution to tackle societal challenges that come with the increasing reliance on technology in urban areas. They offer benefits such as increased efficiency and sustainability. However, smart cities also present significant privacy and cybersecurity risks that need to be carefully examined. This thesis explores the complex privacy and cybersecurity landscape in smart cities, including vulnerabilities, privacy risks, technological frameworks, case studies, threats, attacks, data collection practices, and compliance with regulations such as the General Data Protection Regulation (GDPR).The thesis clarifies the foundational technologies that power smart cities, such as Internet of Things (IoT), data analytics, and artificial intelligence. It identifies common vulnerabilities and privacy concerns present in their infrastructures and operational frameworks by analyzing case studies of prominent smart cities worldwide. The thesis also explores the nexus between privacy, cybersecurity, and technological innovation, providing valuable insights and recommendations who are invested in shaping the future of urban living in the digital age. It reveals the risks posed by IoT devices and data analytics systems, along with real-world instances of cyber-attacks and breaches.