Journal of Cybersecurity and Information Management JCIM 2690-6775 2769-7851 10.54216/JCIM https://www.americaspg.com/journals/show/853 2019 2019 Department of CSE, Chandigarh University, Punjab, India Rishu Rishu Department of CSE, Chandigarh University, Punjab, India Vijay Kumar Sinha Department of CSE, Chandigarh University, Punjab, India Shruti Aggarwal With the advancements in internet technologies and increased transactions over the internet the threats for data security increased many folds than ever. Nowadays message application services are in great demand, as they offered end-to-end encryption (E2EE) that is essential to provide security to the users while communication takes place between parties. Today  messaging application service is in great use for communication. For making communication over the network.  This paper presents that security is essential while communication takes place between users and how E2EE offers security to the users. Consumers' concerns related to the security and privacy of their data are growing day by day with increased inter-connectivity. We examine the existing mobile message service encryption protocols that provide security and the features which preserve privacy for messenger applications and also evaluate the technical challenges involved for its  implementations. 2021 2021 51 59 10.54216/JCIM.080202 https://www.americaspg.com/articleinfo/2/show/853