E-Learning is the process of learning which includes interaction between teachers and learners, with comparison to traditional method of education. Plus, it is dependent on the web applications and internet technology. But, the environment of network is considered as a honey pot as it attracts many hackers; also, it is prone to many security risks like, malicious attacks, hackings, etc. Network security is one of the major concerns of the teachers, learners, instructors, etc., as they are not able to foresee risks and do not know the prevention as well. The aim of this study is to investigate the security issues associated with e-learning and effective countermeasures to prevent or mitigate these risks.