Ghost APIs: Deprecated Endpoints Expose Enterprises to Data Exfiltration and Service Disruption
What Happened — Attackers are increasingly targeting “ghost APIs,” i.e., deprecated endpoints that remain live after a service version is retired. These hidden interfaces bypass modern security controls, allowing threat actors to enumerate, abuse, and exfiltrate data without triggering typical alerts.
Why It Matters for TPRM —
- Legacy endpoints create an unmanaged attack surface that third‑party risk programs often overlook.
- Exploitation can lead to data leakage from critical SaaS or cloud services supplied by vendors.
- Remediation requires coordination across development, operations, and vendor management teams, stretching existing TPRM resources.
Who Is Affected — SaaS providers, cloud‑infrastructure platforms, fintech APIs, health‑tech integrations, and any organization that outsources API development or relies on third‑party API gateways.
Recommended Actions — Conduct a comprehensive inventory of all API endpoints, retire or fully disable deprecated versions, enforce strict API gateway policies, and integrate continuous monitoring for undocumented routes.
Technical Notes — Attack vector: misconfiguration/legacy code left exposed. No specific CVE; risk stems from operational oversight. Data types at risk include PII, financial records, and proprietary business logic. Source: HackRead