ISC2 Certified Cloud Security Professional (CCSP) Practice Question
During the initiation stage of a secure SDLC for a new cloud-hosted claims-processing application, the project team is capturing business requirements that will drive later design decisions. Which of the following statements represents a security business requirement, rather than a functional, performance, or availability requirement?
Customers must be able to submit claims from Android and iOS mobile devices through the public API.
All cardholder data stored by the application shall be encrypted using AES-256 and the encryption keys shall be protected in a hardware security module supplied by the cloud provider.
The application shall process at least 200 claims transactions per second during peak business hours.
The production environment shall achieve a monthly service availability of no less than 99.95 percent.
A security business requirement expresses how the system must protect information or resist threats. Encrypting cardholder data at rest with keys stored in a hardware security module is a control that directly addresses confidentiality and key-management needs; it is therefore a security requirement. The other statements describe, respectively, performance throughput, functional capability, and availability targets-important non-security requirements but outside the security domain addressed at this point in the SDLC.
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What is AES-256 encryption, and why is it a security requirement in secure SDLC?
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What is a hardware security module (HSM), and how does it protect encryption keys?
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Why are security requirements differentiated from performance, functional, or availability requirements in SDLC?
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ISC2 Certified Cloud Security Professional (CCSP)
Cloud Application Security
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