Web & API Penetration Testing
Manual‑first testing mapped to OWASP ASVS & Top 10, with exploit proof‑of‑concepts and fix‑ready guidance.
- IDOR, authN/Z, session, SSRF
- XSS, SQLi/NoSQLi, deserialization
- Rate limiting, multi‑tenant isolation
Shadow Security delivers pragmatic, senior‑level penetration testing and application security for modern products and platforms. We test like attackers, report like partners, and fix with you.
/* Shadow Security Assessment Flow (Abbreviated)
* Methodology: OWASP ASVS · PTES · NIST 800-115
* Coverage: Authentication · Authorization · Storage · Cloud · Supply-Chain
*/
1. Architecture & Threat Modeling (STRIDE/LINDDUN)
2. Authentication, MFA, and Session Integrity Review
3. Authorization & Access Control (RBAC/ABAC, IDOR, tenancy isolation)
4. Client-side & Server-side Injection (XSS, SQLi, NoSQLi, SSRF)
5. Data Validation, Sanitization, and Storage Security
6. API Abuse, Rate-Limit Bypass, and Business Logic Flaws
7. File Upload, Deserialization, and Sandbox Escape
8. Secrets, Cloud Misconfigurations, and Token Handling
9. Race Conditions, TOCTOU, Workflow Manipulation
10. Exploit Proof-of-Concepts & Strategic Remediation Guidance
Tools & ecosystems we work with
Engagements tailored to product maturity, compliance targets, and release schedules.
Manual‑first testing mapped to OWASP ASVS & Top 10, with exploit proof‑of‑concepts and fix‑ready guidance.
Internal/external, AD attack paths, misconfigurations, exposed services, and lateral movement simulation.
AWS/Azure hardening, IAM least privilege, secret handling, CI/CD, container runtime, and exposed assets.
STRIDE/LINDDUN workshops, security requirements, secure architecture reviews, and developer enablement.
Prompt injection, data exfiltration, agentic abuse, model‑in‑the‑loop risks, and safety guardrails design.
Hands‑on secure coding and attack labs aligned to your stack and common findings.
Evidence‑driven testing, clear risk ratings, developer‑ready fixes, and partnership through remediation.
Align on assets, roles, and abuse cases. Model trust boundaries, tenant isolation, and data flows.
Exploratory testing augmented by tooling. Focus on business logic and high‑impact chains.
Actionable PoCs, reproduction steps, and prioritized fixes mapped to ASVS/CWE/CVSS.
Review PRs, retest fixes, and help build lasting controls (SDLC, authN/Z, secrets, observability).
High‑growth SaaS, fintech, and enterprise platforms needing a senior partner that understands product velocity.
“Clear, senior feedback with PoCs my engineers could run. The retest verified our fixes and improved our SDLC.”
“They found a multi‑tenant isolation issue our scanners missed. The guidance shipped within a sprint.”
“Best pentest report we’ve received: prioritized, reproducible, mapped to ASVS, with realistic attack chains.”
Founded by seasoned application security engineers with 6+ years of hands‑on experience across web, API, cloud, and networks. We’ve built and broken real systems, integrated with CI/CD, and helped teams scale secure practices without slowing delivery.
Tell us about your scope, timelines, and goals. We’ll respond within one business day.
We operate under a strict code of ethics and only test with written authorization.