The Internet of Things is Revolutionary

One of the most important and challenging issues in the IoT is the security and privacy due to several threats, cyber attacks, risks, and vulnerabilities. The issues that give rise to device level privacy are insufficient authorization and authentication, insecure software, firmware, web interface, and poor transport layer encryption. Security and privacy issues are very important parameters to develop confidence in IoT Systems with respect to various aspects. Security mechanisms must be embedded at every layer of IoT architecture to prevent security threats and attacks. Several protocols are developed and efficiently deployed on every layer of communication channel to ensure the security and privacy in IoT based systems. Secure Socket Layer (SSL) and Datagram Transport Layer Security (DTLS) are one of the cryptographic protocols that are implemented between transport and application layer to provide security solutions in various IoT systems. However, some IoT applications require different methods to ensure the security in communication between IoT devices. Besides this, if communication takes place using wireless technologies within the IoT system, it becomes more vulnerable to security risks. Therefore, certain methods should be deployed to detect malicious actions and for self healing or recovery. Privacy on the other hand is another important concern which allows users to feel secure and comfortable while using IoT solutions. Therefore, it is required to maintain the authorization and authentication over a secure network to establish the communication between trusted parties. Another issue is the different privacy policies for different objects communicating within the IoT system. Therefore, each object should be able to verify the privacy policies of other objects in IoT system before transmitting the data.