A methodology of assessing security risk of cloud computing in user perspective for security-service-level agreements

underlying cloud computing feature, outsourcing of resources, makes the Service Level Agreement (SLA) is a critical factor for Quality of Service (QoS), and many researchers have addressed the question of how a SLA can be evaluated. Lately, security-SLAs have also received much attention with the Security-as-a-Service mode in cloud computing. The quantitative measurement of security metrics is a considerably difficult problem and might be considered the multi-dimensional aspects of security threats and user requirements. To address these issues, we provide a novel a methodology of security risk assessment for security-service-level agreements in the cloud service based on a multi-dimensional approach depending on services type, probabilities of threats, and network environments to reach a security-SLA evaluation.