Main Confidentiality Challenges in Network Security: A Literature Review

Nowadays, a big challenge is how to protect information from unwanted accesses. It constitutes a big challenge when we have different ways to access data. That is, a lot of information today travels through networks and our challenge today is to guarantee that traveled information should be secret that is not divulged by intruders. There are many different ways to assure that information being transmitted through a network is secret. In this paper, after we have shown in Section 2 a brief description of the security problems inside a local network, the most well-known network security models are presented. This paper provides a review of the confidentiality in network security. Confidentiality is a property that aims to ensure that only authorized users can access the required information and data while unauthorized users and third parties cannot learn it. Confidentiality components encompass the use of access controls, encryption with cryptographic techniques, and secure data communications. Confidentiality has encountered many threats and security risks during its use and deployment such as eavesdropping, network traffic analysis, passive attacks, deception and impersonation attacks, insecure user authentication, and weak password vulnerabilities. Therefore, strategies and measures should be applied and used to enhance the confidentiality and thus secure the communication of data across the internet and other means.