hard20 pts · first answer countsblockchain-fundamentalssecuritywallets

Signing payouts from a backend

A fintech in Abu Dhabi sends stablecoin payouts from a server. Which design best protects the hot wallet key?

A.Sign in a KMS or HSM with spending limits and alerts, never exposing the raw keyB.Keep the key in a .env file on the server, encrypted with base64C.Store the key in the database next to user recordsD.Paste the key into each request from the ops team

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Signing payouts from a backend

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