Securing the Sustainable Future of Manufacturing: Analysis of IoT Retrofit Challenges and Solutions

The Internet of Things (IoT) is revolutionizing manufacturing, serving as a digital makeover tool that collects essential production data. The transition to IoT generates vast data volumes, requiring robust storage and system architecture. Cloud computing steps in here, accommodating these needs with ease. In this setup, a network of sensors across a manufacturing unit captures valuable data, which is transmitted to the cloud. Specialized software then transforms this data into operational performance insights. This digital integration can elevate a manufacturing business, coalescing with existing systems to deliver remarkable results. As the IoT gains popularity, digital manufacturing is poised to soar. However, security has become a paramount concern, especially for retrofitted IoT devices operating with limited human intervention. Researchers have proposed various solutions for IoT security issues. In this study, we conduct a literature review (LR) to identify the security requirements for retrofitting IoT devices in manufacturing. Our goal is to provide a straightforward roadmap for industry stakeholders, highlighting the most suitable security solutions for their retrofitted IoT systems. Our review focuses on scientific papers from the past four years, specifically addressing the security and simplicity of retrofitted IoT architecture in manufacturing. The overarching aim is to define the security needs for IoT retrofitted devices in manufacturing, facilitating the smooth integration of process data into cloud platforms.