Smart cities are no longer a concept or futuristic dream. Thanks to Internet of Things (IoT) solutions, many are already active and expanding rapidly. Municipal governments are leveraging cellular and Low Power Wide Area (LPWAN) wireless technologies to connect and improve infrastructure, efficiency, convenience, and quality of life for residents and visitors alike. But what are the key challenges of Smart Cities? That's what we'll look at during this session, and we'll touch upon a critical factor - security.