A very major concern related to data security, as well as software and data on distant servers and may be destroyed or disappear without any additional warning. Even if it is not reasonable, Cloud computing, any major security interests to provide individuals and companies that are using or developing E-learning based solutions, such as the following:
• Lack of likelihood of improvement: For anyone interested (thief) is almost impossible to determine the number of data stored machine (exams, exam, questions, and results) Where is the service or to understand the physical component theft and access to digital assets which are needed.
• Virtualization: Allows to change quickly from one server in the cloud and in the exploration risk, provided at no cost or serious injury. It is easy to create a virtual machine similar to greatly reduce the time required to stop the cloud.
• Centralized storage of data: Losing a cloud customer, another important event because the main part of the data stored in the cloud, so a new customer can be connected quickly. Imagine what would happen today that a laptop is stolen exam questions in store.
• One advantage would be charged to expense. If E-learning services for a relatively short time (a few weeks, a season, or a semester) are used, the savings will be very important.
• Supervision and control over data access easier, due to the fact that there is only one place to monitor thousands of computers, for example, belong to the university. Security changes can easily be tested and implemented in the cloud is a unique entry point for all its customers.