What is API Security in Cybersecurity?
Cloud Security
Version 1.0 · Published April 2026 · Last verified April 2026
API security protects application programming interfaces from abuse, unauthorized access, and data exposure. Common API threats include broken authentication, excessive data exposure, lack of rate limiting, and injection attacks. The OWASP API Security Top 10 catalogues the most critical API risks. API gateways, WAFs, and dedicated API security tools provide protection layers.
Why API Security Matters for Your Cybersecurity Career
APIs are the primary attack surface for modern cloud applications. Every SaaS product, mobile app, and microservice communicates through APIs. Security engineers who can assess API security, implement API gateways, and conduct API penetration testing address one of the most common vulnerability categories in cloud environments.
Which Cybersecurity Roles Use API Security?
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API security protects application programming interfaces from abuse, unauthorized access, and data exposure. Common API threats include broken authentication, excessive data exposure, lack of rate limiting, and injection attacks. The OWASP API Security Top 10 catalogues the most critical API risks. API gateways, WAFs, and dedicated API security tools provide protection layers.
APIs are the primary attack surface for modern cloud applications. Every SaaS product, mobile app, and microservice communicates through APIs. Security engineers who can assess API security, implement API gateways, and conduct API penetration testing address one of the most common vulnerability categories in cloud environments.
Cybersecurity professionals who work with API Security include Security Engineer, Penetration Tester, Security Architect. These roles apply API Security knowledge within the Cloud Security domain.
Sources
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.
Last verified: April 2026?Report an inaccuracy
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