M. Newlin Rajkumar, S. Palaniswami, Certain Investigations on the Security Issues in Cloud Computing, International Journal of Soft Computing, Volume 10,Issue 1, 2015, Pages 55-64, ISSN 1816-9503, ijscomp.2015.55.64, (https://makhillpublications.co/view-article.php?doi=ijscomp.2015.55.64) Abstract: Cloud computing is an emerging technology holding a place for numerous applications. Understanding of cloud computing is still endlessly increasing and so it has to be clarified often in various aspects. This substantial technology coming forth provides flexibility and elasticity of dynamically scalable resources which are provided and delivered on-demand as a service offered by cloud environment providers in various fields over the internet which is supposed to lift the burden in several business needs without any motive of investing in new infrastructure or licensing new software. Cloud being popular plus transparent to users and applications its significant features have to be known necessarily. A clear perspective of different types of cloud, several characteristic features, various applications of cloud computing and security threats are outlined here which furnishes a beneficial basis for better understanding. Keywords: Cloud computing;types;characteristic features;applications;outline