What problem does HashiCorp Vault solve?
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Quick Answer
Centralized secrets management: it stores, generates, rotates, and audits access to secrets instead of scattering them in configs.
Detailed Answer
Vault provides a single API for static secrets (KV), dynamic short-lived credentials (databases, cloud), encryption-as-a-service (transit), and PKI. Everything is authenticated, authorized by policy, leased with a TTL, and audited — replacing plaintext secrets in env vars and Git.
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Interview Tip
Highlight dynamic, short-lived secrets as the differentiator.
vaultsecretssecurity