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ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

During a security design review, a team must store employees Social Security numbers in a relational database but still allow the application to retrieve the original value when needed. Regulators require the data to remain confidential even from database administrators. Which control best satisfies this requirement?

  • Apply dynamic data masking to the SSN column so administrators see only partial values.

  • Use Transport Layer Security (TLS) to encrypt all traffic between the application server and the database.

  • Encrypt the SSN column using a strong algorithm and store the encryption keys in a dedicated hardware security module.

  • Salt and hash each SSN with SHA-256 before writing it to the database.

ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Concepts
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