Cloud computing is a technology that uses the internet and central remote servers to maintain data and applications. Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access. In cloud computing security is the most important term, its very important to have a secured cloud network especially from hackers. Its crucial to select the appropriate cloud host. Personally i would recommend an Managed cloud computing in which we get an Managed cloud which is constantly monitored and secured by professional admins.