A context aware system is recognized as a "system which uses any context information previous to, or in the duration of, service stipulations", whereas the main goal of this system is to identify any suspicious activity done by the users. The mobility feature of most computing and personal devices have made the 'context of the user' an important aspect of the system. Nowadays with the ever-increasing digitization of the workplace, employees are using their personal devices along with the organization resources provided to them. Context Aware security systems vary from conventional systems, as they provide unique characteristics such as name, geolocation, time of day or type of endpoint system to boost information security decisions. Combine this with a model that notifies and alienates any abnormal activity by the user, we have a strong security measure against harmful cyber activities such as unauthorized end users accessing confidential data, preventing users to download sensitive data onto external devices, and so on. Context-aware security systems address the usability challenge of accessibility and authentication, i.e., to use inferential information such as geolocation, identity, type of endpoint device, or time of day to enhance information security decisions. The use and importance of this system is increasing and therefore plays a huge role in prospective pervasive systems. The goal of this paper is to introduce the reader to the concept of context aware security and lay the groundwork that one needs to get accustomed to the topic, by extracting various topics from different research papers.