Human-led penetration testing for web, API, cloud, network, and AI-enabled systems
Experienced consultants define the test, validate every finding, and own the report — automation and AI widen coverage and speed, never replacing expert judgment.
AI-assisted coverage, expert-verified findings, and clear, prioritized remediation you can act on.
Senior offensive-security consultants · SANS Principal Instructor & SEC542 co-author · OSCP · GXPN · GPEN · GWAPT · GAWN · GWEB · GPYC · Clear, evidence-driven reports
Analyst-led testing, not scanner output
Customers, auditors, insurers, and your own engineering team need more than a scan. They need to know which issues are actually exploitable, what they mean to the business, and what to fix first — validated by senior consultants.
Web Application & API Penetration Testing
Hands-on adversarial testing of modern web apps, APIs, and backend services — including AI-enabled behavior when it’s in scope — aligned to the OWASP WSTG, with ASVS mapping available.
✓ Injection, XSS, auth & access control
✓ API BOLA/BFLA & resource consumption
✓ AI-mediated flows: prompt injection, leakage
AI Implementation Pentest
For teams deploying AI features, LLM integrations, RAG, copilots, agents, or model-serving — assessed across application, data, model, and infrastructure layers, informed by current OWASP AI testing guidance.
✓ Prompt injection, output handling, excessive agency
✓ Guardrails, tool/plugin permissions, retrieval
✓ Tenant/data segregation, logging, kill-switches
Internal & External Network Penetration Testing
External-attacker and internal threat-actor simulation across perimeter systems, exposed services, internal hosts, and identity infrastructure — including Active Directory and Entra ID attack-path testing.
✓ Perimeter, firewall & remote access
✓ Privilege escalation & lateral movement
✓ Identity attack paths & segmentation
Purple Team Assessments
Offense and defense working together in real time — our experts demonstrate attack techniques alongside your security team to validate detections, refine response playbooks, and tune security tools.
✓ Live attack simulation with monitoring
✓ Detection & response across SIEM/EDR/identity
✓ Offensive-to-defensive knowledge transfer
Red Team Assessments
Advanced threat-actor emulation through realistic, goal-oriented intrusion to evaluate detection, response, and containment — human-led, framework-aligned (TIBER-EU, CBEST) where useful.
✓ Stealthy, multi-phase intrusion
✓ Tests preventive & detective controls
✓ Measures real incident response
Mobile Application Penetration Testing (iOS & Android)
iOS and Android apps across client- and server-side components, usually with associated API testing for a full-stack view — aligned to the OWASP MASVS and MASTG.
✓ Insecure storage, crypto & sessions
✓ Transport security & auth boundaries
✓ Reverse-engineering & tamper resistance
Cloud Security Assessments
In-depth assessment of AWS, Azure, Google Cloud, and cloud-native environments — misconfigurations, weak trust boundaries, and exploitable privilege paths, with AI-assisted asset correlation under human oversight.
✓ Exposed storage, public assets & permissive rules
✓ Serverless, container & CI/CD-connected risk
✓ IAM paths, segmentation & baseline alignment
AI-assisted where it helps. Human-led where it matters.
Every engagement follows the same disciplined path — automation widens coverage and speed; senior humans make the calls.
Recon & hypotheses
AI-assisted enumeration and attack-path hypotheses across the scope.
Dynamic validation
Human exploitation and safe proof — real attack paths, not scanner output.
Triage, reporting & QA
Business impact, prioritized remediation, and senior review of every finding.
Clear findings. Reproducible evidence. Practical remediation.
Reports your engineers and leadership can act on — exploitability, evidence, business impact, and prioritized fixes.
Tell us what you need to validate
Application risk, AI implementation security, external exposure, cloud risk, detection readiness, or full adversary simulation — tell us what you need to validate and we’ll recommend the right engagement.
Client Testimonials
What Our Partners Say About 3l337 Consulting
Their team has consistently demonstrated the highest
levels of professionalism, technical expertise, and clear, timely communication.
Jon Gorenflo, CEO, ATTACKD
What sets Timothy apart is not only his technical acumen but also his excellent
communication skills. He articulates complex findings in a clear, accessible manner,
which clients greatly appreciate.
Scott Burchell, Director, Penetration Testing, Sophos