Introduction The use of cloud services by businesses and government agencies has grown rapidly, with the movement of production workloads to infrastructure as a service (IaaS) growing at more than 35 percent per year. 1 This move to cloud-based services has required security programs to extend operations beyond the data center and to re-evaluate security architectures, processes and controls to maintain effectiveness and efficiency in their efforts to secure their sensitive business applications, be they local or cloud-based. Some common success factors have emerged from enterprise cloud use cases where security has been maintained and even improved while moving critical services to IaaS: • Integrate security services available from cloud service providers with third- party securi

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