The Complete API Security Checklist (A Defense-in-Depth Approach)

Short summary

Defense-in-depth API security checklist covering authentication, authorization, encryption, input validation, rate limiting, and secrets management. Maps OWASP API Security Top 10 (2023) to three threat families—broken authorization, authentication abuse, and misconfiguration—with production code examples. Essential reference for engineers securing APIs against the most common real-world attack vectors.

• •Broken Object Level Authorization (BOLA) is the most common API flaw; verify object ownership on every access
• •Layer security across identity, transport, data protection, traffic controls, and operations
• •OWASP API Top 10 (2023) organizes critical risks into three families: authorization, authentication, and misconfiguration

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