Authentication · interview question
Why does signing-key rotation matter even if tokens validate correctly today?
Multiple choiceHardchapter-17-curatedpremiumauthenticationjwt-signatures
Answer and explanation
Correct answer
D. It reduces blast radius if a key leaks and allows safer operational rollover
Why
Rotating signing keys limits exposure when a key is compromised and gives operators a controlled path to replace secrets without freezing the whole authentication system.
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