The advent and implementation of cloud computing and storage means that the third-party data centers provide organizations with the capability to store and process their data. These cloud services can be used in a wide range of service models like increase in the cloud security metrics and reduction of risks and chief among them is the deployment in SaaS and in private/shared models.
Cloud security concerns associated with cloud infrastructures fall mainly into the below mentioned 2 broad categories, as follows:
The responsibility of ensuring complete cloud security is shared. The provider has to be concerned with the infrastructure and see to it that the client’s data and applications are protected. The onus equally lies on the customers also who have to fortify their applications with the use of adequate authentication measures and strong passwords. When an entity decides to have its data stored on the cloud, then its physical access to the servers hosting the information are lost. This gives rise to the risk of data being intercepted from insider attacks.
It is a matter of grave concern that insider attacks take the sixth position among the cloud security threats and this cannot be ignored. This can be dealt with in several ways. Firstly, thorough backgrounds check of the employees having physical access to the data servers must be initiated by the cloud service providers. Also, any suspicious activity should be immediately reported to the concerned authorities in the data centers. Cloud service providers store a lot of customers’ data on the same server and this is done so as to cut down on costs, maintain efficiency and conserve resources. This results in a possibility that one user’s sensitive data can be viewed by the others and it is an easy prey for the competitors. This situation can be best avoided by ensuring data isolation and logical storage segregation.
It is but evident that organizations use multiple and varied cloud applications on a routine basis and a close monitoring of these are necessary. Here below we have enlisted 8 key cloud security metrics to ensure that a proper monitoring is in place for the use of cloud applications (SaaS):
Cloud security solutions provided by Cloud Security Access Brokers (CASB) can be deployed to automate the above talked about measurements and to generate reports for the above given cloud security metrics in an effective way.