The transition of industrial processes from Industry 3.0 to Industry 4.0 has inspired the
technological revolution of wireless sensor networks. This revolution has created the concept of Internet of Things.
The paradigm of Industry 4.0 is developed on the base of Internet of Things and jointly called Industrial Internet of Things. In this era of technology, the smart devices such as sensors, actuators, smart phones, etc. are connected through internet.
These smart devices are the peer point to manage communication in Industrial Internet of Things environment.
However, the wireless communication of data is highly sensitive to security threats. Therefore, this article reviews some major security related issues and discusses some efficient and strong solutions.