Internet of Things (IoT) has been a major research topic for almosta decade now, where physical objects would be interconnected as
a result of convergence of various existing technologies. IoT is rapidly developing; however there are uncertainties about its security and privacy which could affect its sustainable development. This paper analyzes the security issues and challenges and provides
a well defined security architecture as a confidentiality of the user’s privacy and security which could result in its wider adoption by masses.