AI-Based Intrusion Detection for a Secure Internet of Things (IoT)

The increasing use of intelligent devices connected to the internet has contributed to the introduction of a new paradigm: the Internet of Things (IoT). The IoT is a set of devices connected via the internet that cooperate to achieve a specific goal. Smart cities, smart airports, smart transportation, smart homes, and many applications in the medical and educational fields all use the IoT. However, one major challenge is detecting malicious intrusions on IoT networks. Intrusion Detection Systems (IDSs) should detect these types of intrusions. This work proposes an effective model for detecting malicious IoT activities using machine learning techniques. The ToN-IoT dataset, which consists of seven connected devices (subdatasets), is used to construct an IoT network. The proposed model is a multilevel classification model. The first level distinguishes between attack and normal network activities. The second level is to classify the types of detected attacks. The experimental results prove the effectiveness of the proposed model in terms of time and classification performance metrics. The proposed model and seven baseline techniques in the literature are compared. The proposed model outperformed the baseline techniques in all subdatasets except for the Garage Door dataset.