This paper presents an overview of the Cloud Computing Environment and its deployment models. These service deployment models helped various industries to continue their functions. As COVID-19 pandemic has impacted the world like never before. This paper introduces COVID-19 and its severity also presents how cloud computing has given an alternative solution in the form of work from home. Cloud based applications, infrastructure, platforms, services and security provides the enriched solution to IT industries, healthcare sector, Educational Organizations and also to various other e-commerce platforms. This paper shows the effective techniques to utilize the various aspects provided by the cloud computing environment. It also raises the alarm for different security concerns in the deployment of Cloud platforms while COVID pandemic still exists among us.