Secure an Iot Environment from Security Issues and Attacks Using a Secure MQTT Protocol

The ability of networked devices to share data and automate operations has revolutionized a number of sectors thanks to the Internet of Things (IoT). However, there are a number of security risks associated with the rapid development of IoT ecosystems, such as denial-of-service attacks, illegal access, and data breaches. IoT devices are often limited in terms of power and processing capability, making traditional security solutions too resource-intensive for them. Although it provides an effective means of IoT connectivity, the lightweight messaging protocol Message Queuing Telemetry Transport (MQTT) is vulnerable to data manipulation and man-in-the-middle attacks. This study examines the usage of lightweight MQTT-based security measures, with an emphasis on encryption, authentication, and access control, and analyses the main security risks to IoT systems. In order to minimise risks and preserve performance efficiency, the article examines case studies and existing implementations. By safely implementing MQTT, this study helps to improve Internet of Things security by striking a balance between security and resource limitations.