Application security for web apps and APIs
Security reviews against OWASP guidance, infrastructure hardening and secure development practices built into delivery — so issues are found before release.
Overview
Why teams bring us in
Most breaches of business applications come from well-known weaknesses: broken access control, exposed secrets, unpatched dependencies and missing tenant checks.
We review applications and APIs for these systematically, fix what we find or support your team in fixing it, and add the checks that stop the same issues from returning.
Deliverables
What we deliver
- 01
Application security review
Manual and automated testing of authentication, authorisation, input handling and business logic, guided by the OWASP Top 10 and ASVS.
- 02
API and multi-tenant checks
Token handling, rate limiting, tenant isolation and webhook signature verification tested explicitly.
- 03
Infrastructure hardening
Server and cloud configuration, secrets management, TLS, security headers and least-privilege access.
- 04
Secure development practices
Dependency scanning, code review checklists and security tests added to your CI pipeline.
- 05
Remediation and re-testing
Findings are prioritised by risk, fixed, and re-tested — with a written report of what changed.
Typical projects
Where this work usually starts
- Security review before a product launch
- Security questionnaire preparation for enterprise customers
- Hardening an application after a security incident
- Adding security checks to an existing CI pipeline
Approach
How we work on it
- 1
Scope and threat model
Assets, user roles, trust boundaries and the most likely attack paths are identified first.
- 2
Test
Automated scanning is combined with manual testing of the logic that tools cannot understand.
- 3
Report and fix
Each finding includes its risk, evidence and a concrete fix, ordered by priority.
- 4
Prevent regressions
Checks and review steps are added so fixed issues stay fixed.
Technologies we commonly use
- OWASP Top 10
- OWASP ASVS
- Burp Suite
- OWASP ZAP
- Dependency scanning
- Nginx
- Linux
FAQ
Application Security: common questions
Is this a full penetration test?
Our reviews focus on web applications and APIs, combining automated tools with manual testing of business logic. If you need a formal third-party penetration test for compliance, we can prepare the application and fix the findings.
Can you fix the issues you find?
Yes. We can implement the fixes ourselves or work alongside your developers, and re-test afterwards.
Related services
Cloud & DevOps
Infrastructure setup, CI/CD pipelines, containers, monitoring and cost reviews — on AWS or a well-managed server, sized to what your product actually needs.
Learn moreWeb Application Development
Customer portals, dashboards, marketplaces and internal tools built with React and Laravel or Node.js — fast, accessible and easy for your team to maintain.
Learn moreSaaS Product Development
Multi-tenant platforms with the parts that are expensive to add later built in from day one: tenant isolation, permissions, billing, usage limits and audit trails.
Learn more
Let’s talk about your Application Security project
Tell us about the problem, the users and any constraints. We will reply with questions and a suggested first step.