INTERNET OF THINGS: APPLICATIONS, SECURITY, PRIVACY AND FUTURE PROSPECTS

Abstract

The Internet of Things (IoT) is used in homes and hospitals as well as in outdoor spaces to monitor and report environmental. More useful functions. By perceiving, communicating, and acting smart in different situations, the Internet of Things (IoT) has become a major technological model of the digital age. IoT transforms traditional systems into intelligent infrastructures that enhance automation, efficiency, and decision-making across several domains, such as manufacturing, transportation, healthcare, and agriculture, by integrating sensors, embedded systems, and communication networks. The great security and privacy concerns occasioned by the enormous quantity and variety of IoT devices cannot be overstated. IoT systems are vulnerable to numerous cyber-attacks and privacy breaches based on resource depletion, weak authentication, and insecure communication protocols, and inadequate data security practices. Internet of Things' architecture, its primary applications, and the key security and privacy issues jeopardizing its reliability are comprehensively discussed in this research. It examines existing security practices such as access control models, authentication schemes, and encryption techniques while highlighting the growing role of blockchain, AI, and machine learning in the development of advanced IoT defense systems. The paper also deals with the legal and ethical implications of IoT data management and examines prospective directions for future work to build IoT frameworks that are scalable, lightweight, and privacy-preserving. The research concludes that it is crucial for building a secure and trustworthy IoT environment to have a holistic approach integrating user-centric privacy models, technological innovation, and compliance with the law.