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Decoupling for Security – Schneier on Security

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In the article “Decoupling for Security,” the concept of decoupling is introduced as a strategy to enhance security and privacy in cloud services. Decoupling refers to the practice of minimizing the amount of information that cloud systems know, reducing the risk of data breaches and unauthorized access. The article suggests two types of decoupling: organizational decoupling, which involves dividing private information among multiple organizations, and functional decoupling, which involves splitting information among layers of software.

The article emphasizes the importance of considering cloud providers as potential threats and highlights the need for proper verification of decoupling measures. It draws a parallel between encryption and decoupling, stating that decoupling is done right when users feel comfortable using cloud services that have been split across a noncolluding group of adversaries.

To read the full essay and delve deeper into the topic of decoupling for security in cloud computing, the reader is directed to the provided link. The article was written in collaboration with Barath Raghavan and was previously published in IEEE Spectrum.

Key points:
1. Decoupling is a strategy to enhance security and privacy in cloud services.
2. It involves minimizing the amount of information that cloud systems know.
3. Two types of decoupling are suggested: organizational decoupling and functional decoupling.
4. Cloud providers should be considered potential threats, and proper verification of decoupling measures is crucial.
5. Decoupling is comparable to encryption, where users feel comfortable using services split among noncolluding adversaries.

Overall, the article highlights the potential of decoupling as a means to achieve the benefits of cloud computing while maintaining control over security and privacy. It provides valuable insights and recommendations for implementing decoupling strategies in cloud services.

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