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CompTIA Security+ study material · question 191 of 611

Which protection applies to data in use, as distinct from data at rest or in transit?

  1. Full-disk encryption
  2. TLS on the connection
  3. An offsite backup copy
  4. A trusted execution environment or secure enclave
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Answer: D. A trusted execution environment or secure enclave

Data being processed is decrypted in memory, so only memory-level isolation protects it at that moment.

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