About

Your web app is usually the breach path—even if “the backend is strong.” We focus on auth, authorization, and logic integrity: the bugs that let attackers become other users, print money, or pivot into your core systems.

What we cover

Auth flows (login, MFA, password reset, recovery)
Session management and token handling
Authorization across roles, tenants, and objects
Critical workflows (checkout, withdrawals, profile changes)
API endpoints used by the web app
File, input, and integration boundaries

Common Failure Modes

OWASP-style web weaknesses that still bite

Injection patterns that lead to data access or system pivots
Insecure design choices that make entire flows abusable
Misconfig and security headers that enable easy chaining (OWASP)

Authorization and tenancy breaks

IDOR and object-level authorization gaps
Property-level auth gaps (mass assignment/excessive exposure)
Role confusion (admin features reachable via “user-ish” paths) (OWASP)

Logic abuse and state confusion

Race conditions and double-spend style workflow bugs
Price and discount manipulation
“Soft validation” where UI blocks exist but backend doesn’t

How we work

Map the app

roles, assets, workflows, trust boundaries

Instrument

observe requests, tokens, and state transitions

Break logic

test workflows like a motivated attacker

Prove impact

minimal PoCs that show real loss paths

Harden

retest after fixes to prevent regressions

Tools and Standards

Core Tooling

Burp Suite for manual testing and exploit validation
OWASP ZAP for baseline scanning and repeatable checks
OWASP WSTG for structured test coverage
OWASP ASVS for control expectations and test cases

Output format options

Design-friendly findings (short blocks) for public-facing reporting
Engineering-grade appendix (full repro steps) for internal fixes

What we map to

OWASP Top 10:2025
OWASP API Top 10:2023 (when the web app is API-driven)
NIST SSDF for process fixes, not just point patches

Deliverables

Findings grouped by exploit chain (not by scanner category)
Affected endpoints + conditions + evidence
Clear “how this becomes a breach” narrative
Fix direction aligned to standards (WSTG/ASVS)

What Our Clients
Trust us with

▶

We partnered with ImmuneBytes for a security audit of our products. Their expertise and professionalism instilled confidence throughout the process. They promptly addressed our questions, and their thorough analysis significantly enhanced our project's security, safeguarding our users' assets. We highly recommend ImmuneBytes and look forward to future collaborations.

Aruje Jahan

Lokr, Product Owner

ImmuneBytes demonstrated the perfect blend of expertise, commitment, and accountability, resulting in an audit that surpassed expectations. Their thorough approach and dedication ensured a high-quality outcome, reflecting their capability and professionalism in delivering exceptional service.

Dheeraj Borra

Stader Labs, Co-Founder

Robots can do audits, but the personal touch makes a difference. That's why we love Immunebytes! Not only do they do top-class audits, but they also take the time to understand our project and why certain things are done in specific ways. They take the time to ensure we feel heard, which shows in their work.

Yog Shrusti

Farmsent, Co-Founder & CEO

We are thoroughly impressed by their team, who left no scope for a communication gap and provided a quick turnaround time. They took up each requirement with utmost detail and acted on it. It was a pleasing experience to work with you. Looking to working with you guys again!

Mac P

Ethernity, Chief Engineer

What You Need to Know?

Frequently Asked Questions

Everything an attacker can reach from a browser: authentication flows, session management, input validation, API endpoints, file uploads, payment processing, and business logic. We test what breaks when users behave maliciously.

SAST (Static Application Security Testing): Code analysis without running the app. DAST (Dynamic): Testing the running application like an attacker. IAST (Interactive): Real-time monitoring during testing. RASP (Runtime Application Self-Protection): Continuous monitoring in production. We use DAST + manual review for most web apps because automated tools miss business logic flaws.

Scope definition: What's in, what's out
Reconnaissance: Map your application's attack surface
Automated scanning: Catch low-hanging fruit
Manual testing: Find logic flaws automation misses
Exploitation: Prove vulnerabilities are real
Report + retest: Fix guidance and verification

Small app (5–10 features): 1 week. Medium app (20–40 features): 2–3 weeks. Large platform (50+ features): 3–4 weeks.

Each finding includes: severity rating, affected component, reproduction steps, proof-of-concept exploit, business impact explanation, and remediation guidance. No jargon dumps—your developers should be able to fix issues without asking us what we meant.

Use our pricing calculator—it factors in feature count, complexity, and testing depth. Ballpark: $5K–$20K for most web apps.

Yes, and we recommend it. Black-box finds what attackers will find. White-box finds what they'll find eventually. Combined coverage is strongest.

Web Application Testing

What we cover

Common Failure Modes