Abstract
Currently, corporations are more into using distributed systems and relying on networks and communication facilities for transmitting critical and important information that needs to be secured. Therefore, protecting corporations' information becomes more important, and information security is essential to maintain. Information security is defined as protecting the information, the system, and the hardware that use, store and transmit the information, to ensure integrity, confidentiality and availability of data and operation procedures are protected. In this paper, we illustrate the factors that impact information security in different fields; cyber security, Internet of Things and network security from various studies and outline the security requirements to reduce this impact.