aspg-18-3567-1792025538 20261015005218 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group Journal of Intelligent Systems and Internet of Things JISIoT 2769-786X 2690-6791 2025 15 2 Razan Abdulhammed Technical Engineering College for Computer and AI, Northern Technical University, 41000, Mosul, Iraq Shaima Miqdad Mohamed Najeeb Technical Engineering College for Computer and AI, Northern Technical University, 41000, Mosul, Iraq Rabei Raad Ali Technical Engineering College for Computer and AI, Northern Technical University, 41000, Mosul, Iraq Mohammed Ahmed Jubair Department of Computer Technical Engineering, Al-Maarif University College, Al-Ramadi, 31001, Iraq Internet of Things (IoT) has emerged as a new paradigm for integrating internet resources and physical objects. It provides a better standard of living in different domains, like industrial processes, home automation, and environmental monitoring. The growth of IoT depends on the need to connect more devices via the Internet. However, anywhere internet connectivity is involved, security poses as an enormous challenge. Intrusion Detection Systems (IDS) can protect IoTs by applying rules related to IoTs operation. This paper reviews some of the mechanisms of IoT-related IDS, which protect IoT devices against various attacks. The paper includes a summary of the recent developments of IDS against many security threats. A review is presented regarding various IDS designs developed in the last decade with different methods, ideas, and approaches toward a better understanding of suitable IDS platforms that provide security against the global growth of attacks and intruders. It also involves the examination of the IDS basics, types, and components of the previously proposed systems, as well as discussing the pros and disadvantages of each. We organize the taxonomy of investigated IDS approaches using the detection approaches. This work aims to provide a thorough summary of the existing IDS designs and issues to empower research and development for IDS about IoTs. 2025 183 190 3567 https://creativecommons.org/licenses/by/4.0/ 10.54216/JISIoT.150213 https://americaspg.com/journal/18/article/3567 https://americaspg.com/storage/31738715563.pdf