Protecting data in personal cloud storage with security classifications

More and more data is stored in personal cloud storage and it is expected to grow further. As cloud storage is becoming an option for user in keeping their data online, it comes with the security threats and the challenges of protecting their data from unauthorised access. Many security controls have been suggested by governing bodies, industry standards etc. as guidelines to be implemented by cloud storage providers (CSPs) but the complete set of controls cannot be fully implemented due to several challenges such as decreasing availability, less user convenience, need of a robust infrastructure etc. Therefore, we foresee the need to implement protection based on categorisation of data determined by users. This paper will discuss recent security threats and also the levels of data protection in cloud storage. We propose a security framework that protects data in cloud storage based on the level of protection it needs.