WebSec Verified Company

WebSec B.V. – Offensive Security. Expertly Delivered.

WebSec is a premier cybersecurity firm based in Amsterdam, specializing in advanced penetration testing, in-depth security assessments, and tailored offensive security solutions. We help organizations identify and mitigate vulnerabilities before they are exploited, ensuring strong, proactive defense in an evolving threat landscape.

Our expert-led approach combines deep technical knowledge, manual testing techniques, and custom tooling developed in-house. WebSec operates at the intersection of innovation and precision, with a strong focus on high-value, high-impact results for organizations that demand more than just checkbox compliance.

Our Services

• Web Application Penetration Testing
  Full-scope testing of complex web environments using real-world attack techniques.

• API Security Testing
  Comprehensive analysis of REST and GraphQL APIs, covering logic flaws, authentication, and data leakage.

• Mobile Application Testing (iOS & Android)
  Reverse engineering, dynamic analysis, and exploitation of mobile applications.

• Infrastructure & Network Testing
  Internal and external assessments, Active Directory exploitation, and segmentation validation.

• ICS/SCADA Assessments
  Scenario-based testing of industrial systems, including PLCs and HMI components.

• Cloud Environment Security Reviews
  Pentesting AWS, Azure, and GCP deployments for misconfigurations and privilege escalation paths.

• IoT and Embedded Device Testing
  Firmware analysis, hardware interfacing, and attack surface exploration.

• Red Teaming & Adversary Simulation
  Realistic threat actor simulations to test detection and response capabilities.

Why WebSec

• Engagements led by experienced researchers with published CVEs and deep technical expertise

• Manual, in-depth testing with real-world exploit scenarios

• Clear reporting with reproduction steps, remediation guidance, and risk-based prioritization

• Certified under ISO 27001, ISO 9001, and CCV Pentest

• Custom tooling and zero-day research from our internal R&D unit

Industries Served

• Financial Services

• Healthcare and Medical Devices

• SaaS and Cloud Platforms

• Government and Defense

• Industrial Automation and Critical Infrastructure

• Consumer Electronics

Trusted by Leading Organizations

With hundreds of responsible disclosures and a proven track record, WebSec delivers consistent, reliable, and impactful results to clients across Europe and the Middle East.

Let us in. Keep them out.