Identify real vulnerabilities
before attackers do
We uncover real-world security risks in web applications and infrastructure, providing actionable insights to help protect your business.
What We Do
Comprehensive Security Services
End-to-end security assessments tailored to identify and mitigate the risks that matter most to your organisation.
Web Application Pentesting
In-depth manual testing of web applications to uncover OWASP Top 10 vulnerabilities and business logic flaws.
API Security Testing
Comprehensive assessment of REST, GraphQL, and SOAP APIs for authentication bypasses and injection vulnerabilities.
Network Security Assessment
Identify exposed services, misconfigurations, and lateral movement paths across your infrastructure.
Red Team Operations
Simulate advanced threat actors to test your detection, response, and resilience capabilities end-to-end.
Real Impact
Featured Case Study
Broken Access Control in E-Commerce Platform
During a black-box assessment, our team discovered an IDOR vulnerability that allowed any authenticated user to access, modify, or delete other users' orders by iterating sequential numeric IDs.
GET /api/orders/41337 HTTP/1.1
Authorization: Bearer attacker_token
Host: shop.example.com
HTTP/1.1200 OK
{
"order_id": 41337,
"user_email": "victim@email.com",
"card_last4": "4242",
"address": "123 Main St…"
}
Our Advantage
Why Choose ZeroDay Sentinel
We combine technical depth with clear communication to deliver assessments that actually make a difference.
Real-World Expertise
Our researchers come from bug bounty programs and real incident response — not just certifications.
Detailed Reporting
Every finding includes severity rating, proof-of-concept evidence, and step-by-step remediation guidance.
Remediation Guidance
We don't just find problems — we walk you through the fix with clear, actionable advice tailored to your stack.
Post-Fix Verification
We re-test after patching to confirm every vulnerability is fully remediated with no regressions introduced.