Framework: NIST 800-53 Audio Course

Component Authenticity (SR-11) focuses on verifying that hardware, software, and firmware components are genuine, unaltered, and obtained from trusted sources. For the exam, understand that SR-11 mitigates the risk of counterfeit or tampered components entering the system supply chain. This control requires traceability from manufacturer to deployment, authentication of components through digital signatures or serial number validation, and documented custody through delivery and installation. The goal is to ensure that every part of a system—whether a circuit board, driver, or code library—can be verified as authentic and safe to use.

Operationally, SR-11 is achieved through strict procurement policies, approved vendor lists, and authenticity verification at receipt. Tools that validate digital signatures or firmware checksums confirm that software has not been modified. Hardware authenticity checks include vendor-provided certificates or tamper-evident packaging inspections. Evidence consists of supplier attestations, verification logs, and chain-of-custody records maintained from acquisition through deployment. Metrics include the number of verified components, authenticity test success rates, and incidents involving counterfeit detection. Pitfalls include bypassing verification for “trusted” suppliers, incomplete tracking of subcomponents, or failing to revalidate during maintenance. Mastery of SR-11 proves the ability to maintain technical trustworthiness across increasingly complex supply chains.
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