JWKS vs Session Verification: How API Trust Boundaries Affect Account Recovery

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JWKS verification and session verification serve distinct roles in securing API requests, particularly in customer support and account recovery scenarios. JWKS verification validates a token's signature using a public key set, making it suitable for high-volume, distributed systems without exposing private key material. Session verification goes further by confirming whether a specific session remains valid at the moment of the request, accounting for revocation or policy changes since the token was issued. Most customer-support systems require both methods, with a clear recovery policy defining when each applies — such as requiring session verification for password resets or agent-assisted recoveries. Proper key rotation management, including bounded caching, refresh triggers, and failure telemetry, is essential to maintaining both security and availability in production environments.

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