Which term refers to a hardware-assisted area that keeps sensitive data isolated from untrusted software?

Which term refers to a hardware-assisted area that keeps sensitive data isolated from untrusted software?

• A. Secure Enclave
• B. Data In Use
• C. Encryption Levels
• D. Data At Rest

Answer: (A)

Hardware-backed isolation creates a secure enclave—a dedicated, tamper-resistant area inside a device that processes and stores sensitive data like cryptographic keys without letting untrusted software access it. This enclave operates separately from the main operating system, leveraging hardware protections to keep secrets safe even if the rest of the system is compromised. It often works with features like secure boot and attestation to prove its integrity and protect data in use. Data in use refers to information currently being processed by the CPU, which is not about a separate hardware-protected area. Data at rest is data stored on storage media, not a protected execution environment. Encryption levels describe how strong the cryptographic protection is, not where data is isolated. The exemplary concept here is the secure enclave.

Hardware-backed isolation creates a secure enclave—a dedicated, tamper-resistant area inside a device that processes and stores sensitive data like cryptographic keys without letting untrusted software access it. This enclave operates separately from the main operating system, leveraging hardware protections to keep secrets safe even if the rest of the system is compromised. It often works with features like secure boot and attestation to prove its integrity and protect data in use.

Data in use refers to information currently being processed by the CPU, which is not about a separate hardware-protected area. Data at rest is data stored on storage media, not a protected execution environment. Encryption levels describe how strong the cryptographic protection is, not where data is isolated. The exemplary concept here is the secure enclave.