Web2 Offensive Security & Application Pentesting

Securing the Foundation: Web2 in the Age of Decentralization

While blockchain (Web3) and AI redefine the future, most organizations still rely on what we define as Web2, centralized web architectures powering APIs, SaaS platforms, in-house applications, backend systems, and cloud infrastructures.At NotLan, we deliberately separate Web2 and Web3 because this distinction is critical. Both coexist, both are interconnected  and both expose unique attack surfaces. Modern offensive security requires mastering both domains.

Cyber-security analyst reviewing source code and on-screen ‘Vulnerability Alert’ warnings during Web 2 application penetration tes
Laptop displaying ‘Offensive Security & Application Pentesting’ dashboard with global vulnerability heat-map and risk analytics charts

Our Web2 Security Services

Dynamic Web Application Pentesting

• Full-scope penetration testing against production and staging environments

• Business logic abuse, input validation flaws, session mismanagement, and injection vectors

• CSRF, SSRF, file upload exploits, deserialization attacks, broken access control

3D illustration of a Web 2 architecture—laptop client, API gateway, server rack and database—highlighting common vulnerabilities: CSRF, SQL Injection, SSRF, deserialization flaws and insecure file-upload paths.

API Pentesting & Business Flow Abuse

• REST, GraphQL, WebSocket, gRPC, and hybrid API testing

• Authentication and token abuse (JWT, OAuth, OpenID Connect)

• IDORs, privilege escalations, mass assignment, and unauthorized data access

• Abuse of business processes under adversarial conditions

Laptop screen showing API-security flowchart (REST, GraphQL, WebSocket) with risks such as token abuse, IDOR and unauthorized-data access; smartphone beside laptop mirrors the diagram.

Secure Code & Architecture Reviews

• Full code review of proprietary backend platforms

• Secure design validation of architecture, authentication, and data flows

• CI/CD pipeline security, secrets management, and deployment hardening

• Developer collaboration for secure coding practices

Developer reviewing printed backend-architecture diagram with marked vulnerabilities while laptop screen shows SQL-injection code snippet; sticky note reads ‘Secure Code’.

Supply Chain & Dependency Security

• Vulnerable dependency identification (SBOM generation, SCA)

• 3rd-party service integration attack surface reviews

• OAuth misconfigurations, identity federation risks, and authorization bypass

Software-dependency graph highlighting a vulnerable ‘lodash’ package under magnifying glass, illustrating supply-chain risk and SCA analysis.

 Methodologies & Standards We Follow

At NotLan, our offensive testing is backed by industry standards to ensure thorough, consistent, and repeatable assessments:

     • OWASP Web Security Testing Guide (WSTG)

     • OWASP API Security Top 10

     • OWASP Top 10 (latest version)

     • PTES (Penetration Testing Execution Standard)
for full-scope enterprise         engagements

     • NIST SP 800-115: where applicable for regulated industries

     • Custom Threat Modeling & Attack Simulation Frameworks depending on client        needs

We adapt our methodology to match your environment, risk profile, and regulatory landscape from fast-moving SaaS startups to heavily regulated enterprises.

Open navy-blue binder on wooden desk with color-coded tabs for OWASP, PTES, NIST, Custom, and Threat Modeling security standards.

Why We Call It Web2 — And Why It Matters

• Web2 represents the centralized backbone of modern applications.

• Web3 and AI operate on top of Web2 — vulnerabilities here often compromise entire   decentralized or AI-enabled systems.

• As businesses evolve into multi-stack environments, full-spectrum offensive security   becomes non-negotiable.

• The industry is rapidly shifting towards layered security testing — Web2, Web3, and AI   must be assessed holistically.

NotLan exists to secure all layers before adversaries exploit the gaps between them.

Isometric graphic showing a layered tech stack with Web 2 as the foundational platform supporting Web 3 and AI icons, highlighting the need for integrated security across all layers.

Why Work With NotLan?

✅ Offensive security expertise across web applications, APIs, backend services, and        SaaS platforms

✅ Business logic attack simulation, real-world adversarial testing, and architectural flaw        identification

✅ Full integration with developer teams for practical, actionable remediation

✅ Unified testing methodology aligned with Web2, Web3, and AI attack surfaces

Your Web2 stack is not obsolete, it’s the core of your attack surface.
Let us break it before someone else does.

Dimly lit data-center corridor lined with server racks; glowing green check marks indicate successfully validated, secure infrastructure.