Authorization testing
Object-level and function-level access control probed across every role and tenant boundary — the flaw class behind most real API breaches.
Cybersecurity · Security Testing
Your APIs outnumber your pages — attackers noticed
Modern products expose more logic through APIs than through any UI, and API flaws — broken object-level authorization, mass assignment, unbounded queries — don't show up in web scans. We test APIs the way they're attacked: as programmable business logic.
API breaches are quiet and complete: no browser, no alarms, just enumerable IDs and data leaving at machine speed. By the time misuse shows in metrics, the dataset is already gone.
What we do
Input & injection testing
Injection classes, deserialization, and schema-validation gaps across REST, GraphQL, and event endpoints.
Business-logic abuse
Rate limits, workflow bypasses, replay, and enumeration — the attacks that are legal HTTP and illegal business.
Auth & session review
Token handling, JWT validation, key management, and session lifecycle — where one mistake is total compromise.
How it’s delivered
01
Map
API inventory from specs and traffic — including shadow endpoints.
02
Test
Manual assessment aligned to the OWASP API Security Top 10.
03
Report
Findings with working repro requests.
04
Retest
Fix verification, updated report.
Tools & standards
- Tooling
- Burp Suite Pro, OWASP ZAP, Postman, custom harnesses
- Methodology
- OWASP API Security Top 10; PTES-aligned reporting
What you receive
- Endpoint-mapped findings with reproduction requests
- Authorization-matrix results across roles and tenants
- Remediation guidance your API team can apply directly
- Retest verification
Evidence
300+ APIs, one program
We ran a structured security assessment across 300+ endpoints — authentication, authorization, rate limiting, and injection classes — with findings ranked by exploitability.
Case studies →Who this is for
- Platform teams whose public API is the product
- Companies whose last web pentest barely touched the API surface
- Teams shipping mobile or partner integrations backed by shared APIs
Common questions
Do you test against the OWASP API Top 10?
Yes — the assessment is structured around the OWASP API Security Top 10, with particular focus on broken object- and function-level authorization, the flaw class behind most real API breaches.
What about our undocumented endpoints?
API discovery works from specs and live traffic, so shadow and internal endpoints exposed by frontend scripts are mapped and tested, not just the documented surface.
Is retesting included?
Yes. Remediation of reported findings is verified and the report updated to 'remediated and retested' — the wording auditors expect. Retest scope and window are set in the engagement agreement.
How is our data and are the findings handled?
Engagements run under NDA. Findings and reports are shared through channels agreed at scoping and are not retained beyond the period needed to deliver and support the engagement. Data-handling specifics — storage, encryption, retention, and destruction — are documented in your service agreement; see the Trust page for our current posture.
Ready to scope the work?
A 30-minute call with the engineers who will do the testing — not a sales gate.