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Last updated: April 29, 2026
Why this module. Most enterprises have 30-60% more APIs than their security team knows about. Shadow APIs (unauthorised), zombie APIs (deprecated but still listening), partner APIs nobody documented. Each is an attacker’s entry point.
Why this module. Most enterprises have 30-60% more APIs than their security team knows about. Shadow APIs (unauthorised), zombie APIs (deprecated but still listening), partner APIs nobody documented. Each is an attacker’s entry point.
The four classes of unknown APIs
- Shadow API — not on your inventory, exposed anyway. Often a developer’s “quick fix” that became permanent.
- Zombie API — was retired; load balancer still routes; backend still listens.
- Internal API exposed — meant to be private, accidentally reachable from internet.
- Third-party API hardcoded — vendor API keys in your code; vendor breach = your breach.
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