What we look for
API vulnerabilities we hunt for
Testing follows the OWASP Testing Guide and real attacker behavior,
pairing manual exploitation with targeted tooling across the flaw classes that actually lead to breaches.
Broken Object Level Authorization (BOLA)
Endpoints that return or change objects without confirming the caller owns them, the leading cause of API breaches.
We test for
- IDOR on object identifiers
- Cross-tenant and cross-account access
- Predictable or enumerable IDs
- Ownership checks on every method
Broken Authentication
Weak token issuance, validation, or session handling that lets attackers impersonate users or services.
We test for
- JWT signature and algorithm flaws
- Token expiry and revocation
- Credential stuffing exposure
- API key and secret handling
Excessive Data Exposure & Mass Assignment
APIs that return more data than a client needs, or accept fields they should never trust.
We test for
- Over-broad response objects
- Mass assignment of protected fields
- Sensitive data in responses
- Field-level authorization
Rate Limiting & Resource Abuse
Missing throttling that enables brute force, scraping, and denial of service.
We test for
- Unbounded requests and pagination
- Brute-force and enumeration
- Expensive query abuse
- Business-flow rate limits
How it works
How your engagement runs
From scope through the final retest, your team stays in the loop at every step,
with findings tracked live in our platform.
- 01
Scope & kickoff
Targets, roles, and rules of engagement defined in writing, with a fixed scope and timeline.
- 02
Testing goes live
Findings post to your live platform dashboard the moment our testers confirm them.
- 03
Track remediation
Follow every finding from open to fixed, with severity, evidence, and status in one place.
- 04
Report & retest
Executive and technical reports land, then request a free retest in one click.
Resources
Field notes from the offensive side
Offense in Depth in Red Team Operations
Defense in depth layers protection. Offense in depth layers attack paths so a red team still reaches its objective when one route fails. Here is how it works.
Security Between Penetration Tests
An annual pentest covers two weeks and leaves fifty uncovered. Here is how to secure the rest of the year without waiting for the next scheduled engagement.
The Limits of AI in Penetration Testing
AI is changing penetration testing, but it will not replace human testers. Here is what it does well, where it falls short, and why judgment still wins.
Want to see a real report first?
Request a redacted sample report before you scope an engagement.
FAQ
Frequently asked questions
What teams most often ask before
scoping API penetration testing.
01How is an API penetration test different from a web application test?
A web application test looks at the full application including its interface and logic, while an API test focuses on the backend endpoints, how they authorize requests, and how they expose data. Many teams run both, since modern applications depend heavily on APIs that attackers target directly.
02Which API types do you test?
We test REST, GraphQL, and SOAP APIs, whether they are public, partner-facing, or internal. Testing is aligned to the OWASP API Security Top 10 and tailored to how your API authenticates and handles data.
03How long does an API penetration test take?
Most engagements run about one week depending on the number of endpoints and their complexity, followed by reporting and a complimentary retest of any remediated findings.
Ready to test your defenses?
Talk to our team about scoping API penetration testing.
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