International Journal on Computer Science and Technology (IJCST)
Cloud computing provides applications, computing facilities, software, data access, and storage resources without requiring cloud users to know the details of the computing infrastructure. Cloud computing model provides ubiquitous, on-demand access to computing resources like networks, servers, applications and storage. As cloud computing becomes prevalent, more sensitive information is being centralized into the cloud such as personal health records, corporate intellectual property, government documents. Along with many benefits, cloud computing brings critical challenges and security threats. This paper discusses various challenges such as security threats, scalability, availability, authentication and compliance and legal issues.