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Cloud Computing Bible by Barrie Sosinsky

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Chapter 12. Understanding Cloud Security

IN THIS CHAPTER

  • Reviewing cloud security concerns

  • Understanding how cloud data can be secured

  • Planning for security in your system

  • Learning how identity is used to allow secure cloud access

Cloud computing has lots of unique properties that make it very valuable. Unfortunately, many of those properties make security a singular concern. Many of the tools and techniques that you would use to protect your data, comply with regulations, and maintain the integrity of your systems are complicated by the fact that you are sharing your systems with others and many times outsourcing their operations as well. Cloud computing service providers are well aware of these concerns and have developed new technologies to address them.

Different types of cloud computing service models provide different levels of security services. You get the least amount of built in security with an Infrastructure as a Service provider, and the most with a Software as a Service provider. This chapter presents the concept of a security boundary separating the client's and vendor's responsibilities.

Adapting your on-premises systems to a cloud model requires that you determine what security mechanisms are required and mapping those to controls that exist in your chosen cloud service provider. When you identify missing security elements in the cloud, you can use that mapping to work to close the gap.

Storing data in the cloud is of particular concern. Data should be transferred and stored ...

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