Machine-to-machine (M2M) communication refers to the direct exchange of data between devices without human intervention. This technology enables devices to communicate over networks, allowing them to share information and perform tasks automatically. Common examples include smart meters, industrial sensors, and connected vehicles. M2M communication is essential for the Internet of Things (IoT), where everyday objects are interconnected. By facilitating real-time data transfer, M2M enhances efficiency, reduces costs, and improves decision-making in various sectors, including healthcare, transportation, and manufacturing.