As the Internet of Things (IoT) increasingly becomes a reality, thousands of devices get connected to IoT platforms in smart cities and regions. These devices will actively send data updates to cloud-based platforms, as part of smart applications in various domains like healthcare, traffic, and education among others. Therefore, it is important to assess the ability of modern IoT systems to handle high rates of data updates coming from devices. The paper aims at developing metrics that can be used to assess the IoT cybersecurity status of a country in terms of the Intensity, Readiness, and Adoption with a special focus of Uganda as a case study. To achieve this, a design science approach was employed. Data were collected from a sample of 127 respondents from 7 firms around Kampala district. Finally, the impact of the proposed metrics is demonstrated through an application to the IoT assessment model.