Scoping
Scope, environments, user roles, quotas, and testing windows.
OSCP Certified — Application Security
Your API Exposes More Than Your Interface
A well-designed interface often hides an API that responds to everything. That's where we get in.
- REST and GraphQL: authentication, tokens, scope permissions, expiration
- Object-level authorization — IDOR, horizontal and vertical privilege escalation
- Input validation, injections, unfiltered data exposure
- Rate limiting, enumeration, and business logic abuse
Request an API Pentest
Enter the base URL of the API or its documentation. An expert will contact you to define the scope.
150+
audited companies
SINCE 2016
72 h
first response
INCIDENT RESPONSE
1 247
vulnerabilities reported
ALL AUDITS
Included
re-test after correction
ALL OFFERS
Why Test Your API
Scanners see the routes. Not the permissions.
The most costly API flaws aren't injections: they're poorly checked authorizations, which only manual testing with multiple accounts can reveal.
- An object ID in the URL, and account A reads account B's data: this is the most common and discreet vulnerability.
- A token that doesn't expire, overly broad scope, poorly controlled refresh — authentication passes, authorization doesn't.
- Public API documentation gives an attacker a complete map, including routes the interface never calls.
- Tests are performed with real test accounts, on real user journeys: this is the only way to prove impact.
All engagements require written authorization and a defined scope.
Process
4 steps from scoping to retest
Scoping, test accounts, controlled exploitation, and reporting.
Mapping
Inventory of routes based on documentation, traffic, and discovery.
Manual Testing
Cross-account authorizations, tokens, inputs, business logic.
Reporting & Retest
Reproducible evidence, prioritization, then verification of fixes.
Deliverable Example
What does a professional audit look like?
Anonymized example: executive summary, consolidated score, and priorities for your IT department or integrator.
- Executive summary and risk score on one page
- Prioritized findings with concrete remediation paths
- Internally shareable document (IT Dept, CISO, Management)
What our clients say
We don't rate ourselves.
Reviews published on our Google listing by companies that have actually been audited. Verifiable, one by one.
GOOGLE
We hired White-Hat to conduct a cybersecurity audit of all our servers, and we are very satisfied with the quality of their work. Philippe demonstrated professionalism, responsiveness, and excellent communication skills throughout the entire process. The recommendations provided were clear, relevant, and immediately actionable to strengthen our security. We highly recommend their services.
GOOGLE
Excellent experience with White-Hat for a comprehensive security audit of our SaaS platform. The quality of service was truly outstanding: Philippe took the time to understand our application's architecture before starting the tests, which made all the difference to the relevance of the results. The report was detailed, with vulnerabilities categorized by criticality, concrete evidence of exploitability, and recommendations directly applicable by our technical team. The post-delivery follow-up to verify the patches was a real bonus. Professional, rigorous, and attentive: exactly what you need to secure a SaaS product.
GOOGLE
We hired White-Hat for a comprehensive audit/advanced penetration test on our website, and it's clearly the direct contact with Philippe that makes all the difference. No salesperson between us, no unnecessary jargon: we communicate directly with someone who understands our challenges and can clearly explain the vulnerabilities found. The report was precise, with concrete evidence and recommendations that we were able to implement quickly. A truly trustworthy relationship; I highly recommend them.
GOOGLE
Professional work. Thank you.
GOOGLE
We urgently contacted White Hat following a suspected compromise of several servers. The team was extremely responsive and addressed our request within minutes, with clear communication at every stage. Their vulnerability analysis was conducted very rigorously, resulting in a detailed report and concrete, easy-to-implement recommendations to strengthen our security. The investigation of the compromised servers allowed them to quickly identify the source of the attack and contain the incident without any major disruption to our services. Professional, knowledgeable, and readily available, I highly recommend this provider for any cybersecurity intervention, especially in emergency situations.
The Human Behind the Tool
About Your Point of Contact
I am a cybersecurity consultant: I assist IT teams and management with audits, penetration tests, and hardening. My background is field-oriented (SMEs, mid-sized companies, e-commerce, industry) with a simple requirement: actionable findings, not jargon.
Why this profession: making real risks visible to help make quick decisions — securing also means clarifying what matters for the business.
Expertise built since 2020 in various contexts; recognized certifications (OSCP, CISSP, OSEP) and continuous threat monitoring.
Pedagogy: translating technical details into business decisions (prioritization, budget, planning).
Frequently Asked Questions
What we answer before you ask
Do you test GraphQL APIs?
Yes. Introspection, query depth, field-level permissions, and resolvers are GraphQL-specific concerns, and they are tested differently from REST APIs.
Do we need to provide test accounts?
Yes, and multiple ones, with different roles. Without them, authorization flaws—the most frequent ones—remain invisible.
Can we test in production?
Yes, if the rules of engagement, exclusions, and timing are validated with your teams. An identical staging environment to production remains preferable.
What if the API is not documented?
We map it from application traffic and discovery. It takes longer, and it's also what an attacker would do.
No Obligation
Get your API tested
Enter the base URL of the API or its documentation. An expert will contact you to define the scope.