How does encryption support confidentiality in cybersecurity? Learn why encrypting sensitive customer data ensures only authorized access, a critical principle for the Cisco Certified Support Technician (CCST) Cybersecurity 100-160 exam.
Table of Contents
Question
A company is implementing encryption to protect sensitive customer information stored on its servers. Which security principle does this support?
A. Authentication
B. Integrity
C. Availability
D. Non-repudiation
E. Confidentiality
Answer
E. Confidentiality
Explanation
Confidentiality ensures that only authorized users can access sensitive data by using encryption and other security measures.
Implementing encryption to protect sensitive customer information stored on servers directly supports the security principle of confidentiality.
Confidentiality is a core principle of information security that ensures sensitive data is accessible only to authorized individuals and protected from unauthorized access or disclosure.
Encryption transforms readable data (plaintext) into an unreadable format (ciphertext) that can only be deciphered by those possessing the correct decryption key. This makes it a primary tool for maintaining data confidentiality, both at rest and in transit.
By encrypting customer data, organizations prevent unauthorized parties—even if they gain access to the storage medium or intercept network traffic—from viewing or misusing the information.
Maintaining confidentiality through encryption is essential for regulatory compliance, customer trust, and minimizing business risk.
While encryption also supports integrity and accountability, its main function and benefit in this context is to keep data private and shielded from unauthorized access.
Encryption ensures that only authorized users can access sensitive data, protecting customer information from unauthorized disclosure and supporting the principle of confidentiality.
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