What is API Security in Cybersecurity?

Cloud Security
ByDecipherU Editorial
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?

Related Cybersecurity Terms

Related Cybersecurity Certifications

Citation index · auto-derived from course content

Where API Security is used across DecipherU

2 public surfaces on the platform reference this term in a meaningful way. Sorted by relevance.

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.

Last verified: April 2026?Report an inaccuracy

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