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How does encryption protect data at rest?
How does encryption protect data at rest? Encryption at rest turns stored data into unreadable ciphertext without the key. If someone steals a disk or snapshot, they can’t easily read the data. “I encrypt at rest and manage keys carefully with KMS, because the key is the weak point.” Encryption only
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What this card says
Short answer
Encryption at rest turns stored data into unreadable ciphertext without the key.
Example
If someone steals a disk or snapshot, they can’t easily read the data.
Say it in the interview
“I encrypt at rest and manage keys carefully with KMS, because the key is the weak point.”
Why it matters
Encryption only helps if the keys are protected, so key management matters most.
Learn more in the lesson: 47.6 Cloud and AWS Security MNC Themes