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19/08/2026 3:28 pm
TL;DR: APIs now expand digital attack surface through broken authentication, misconfigurations, and continuously changing integrations, according to Probely’s analysis of API security risk. The governance challenge is no longer just exposure discovery, but keeping access controls, monitoring, and compliance checks aligned as APIs evolve.
NHIMG editorial — based on content published by Probely: The Rise of API Security: Why It Matters More Than Ever
Questions worth separating out
Q: How should security teams govern APIs that support third-party and partner integrations?
A: They should treat partner-facing APIs as governed access paths, not just technical interfaces.
Q: Why do APIs create so much risk in modern web applications?
A: APIs often carry the real business logic of an application, including data access, account actions, and administrative functions.
Q: What do security teams get wrong about REST API security?
A: Teams often focus on transport security and forget that HTTPS does not solve authorisation, least privilege, or response leakage.
Practitioner guidance
- Inventory APIs as access-bearing assets Map every public and internal API endpoint to its authentication method, authorization model, data sensitivity, and owning team so you can prioritise the paths that actually govern access.
- Embed API security checks into CI/CD Run automated scanning and schema validation in the delivery pipeline so new endpoints, broken access controls, and unsafe changes are detected before release.
- Test authorization paths, not just logins Validate object-level access, scope enforcement, and role-to-resource mappings for service accounts and API tokens, because successful authentication alone does not prove the caller is entitled to the action.
What's in the full article
Probely's full article covers the operational detail this post intentionally leaves for the source:
- Step-by-step API scanning workflow for discovering exposed endpoints, broken access controls, and misconfigurations in active environments.
- Schema parsing details for OpenAPI, Swagger, and Postman so teams can compare declared interfaces with real exposure.
- Continuous monitoring and CI/CD integration guidance for keeping API tests aligned with release pipelines.
- Compliance-oriented testing considerations for GDPR and HIPAA when APIs handle personal or sensitive data.
👉 Read Probely's analysis of rising API security risk and attack surface growth →
API attack surface is growing fast. Are your controls keeping up?
Explore further
19/08/2026 4:12 pm
API security has become an identity governance problem as much as an application security problem. APIs increasingly mediate machine-to-machine access, which means the security boundary is often a token, key, or scoped authorization rule rather than a user session. That shifts risk into IAM and PAM territory because the question is no longer only whether an endpoint is reachable, but whether the access path is properly bounded and auditable. Practitioners should treat API access as governed identity, not just traffic.
A question worth separating out:
Q: How do compliance requirements change API security decisions?
A: Compliance makes API security an evidence problem as well as a control problem. If an API handles personal or sensitive data, teams need continuous proof that access is restricted, data handling is controlled, and changes are reviewed, otherwise they cannot demonstrate that the programme is operating as designed.
👉 Read our full editorial: API security risk is expanding with hidden attack surface growth
