SLA-Based Continuous Security Assurance in Multi-Cloud DevOps
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Multi-cloud applications, i.e. those that are deployed over multiple independent Cloud providers, pose a number of challenges to the security-aware development and operation. Security assurance in such applications is hard due to the lack of insights of security controls applied by Cloud providers and the need of controlling the security levels of all the components and layers at a time. This paper presents the MUSA approach to Service Level Agreement (SLA)-based continuous security assurance in multi-cloud applications. The paper details the proposed model for capturing the security controls in the offered application Security SLA and the approach to continuously monitor and asses the controls at operation phase. This new approach enables to easily align development security requirements with controls monitored at operation as well as early react at operation to any possible security incident or SLA violation.