QuestionQ20

Security Principles

Which of the following claims about the benefits of encryption is false? Encryption can:

Choose two
  • A significantly reduce the chance information will be modified by unauthorized entities.
  • B only be used to protect data in transit. Encryption provides no protection to stored data.
  • C allow private information to be sent over public networks, in relative safety.
  • D significantly reduce the chance information will be viewed by unauthorized entities.
  • E prevent information from being destroyed by malicious entities, while in transit.
Explanation

Encryption protects confidentiality by preventing unauthorized disclosure, including for data in storage and in transit, and can enable private information to be transmitted more safely across public networks. It does not prevent a malicious entity from destroying information; preventing destruction is an availability and integrity concern requiring additional safeguards.

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