We Find What Scanners Miss.
Manual-first penetration testing and offensive security services for growth-stage product companies.
The Problem We Solve
Automated Scanners Have a Blind Spot
Automated scanners catch known vulnerabilities. Attackers exploit the ones they don't.
Most startups buy a SaaS scanning tool, run it once before their SOC 2 audit, and call it done. What they miss: business logic flaws, authentication bypasses, and chained API vulnerabilities that only a human tester — thinking like an attacker — will find.
SignalFence was built for exactly that gap.
🔍 What Scanners Catch
Known CVEs, outdated libraries, common misconfigurations
🎯 What Attackers Exploit
Business logic flaws, auth bypasses, chained API vulnerabilities
✅ What We Find
Everything a human attacker would — validated, confirmed, exploitable
Our Services
Comprehensive offensive security testing across every layer of your product stack.
Web Application Penetration Testing
Manual testing across your entire web application — every page, every user role, every workflow. Validated against OWASP Top 10 with zero false positives.
API Security Testing
REST, GraphQL, and JSON API assessment covering IDOR, mass assignment, rate limiting failures, and privilege escalation chains. Real-world attack scenarios.
Business Logic Testing
We model your actual business workflows and attempt to exploit the logic layer — checkout manipulation, pricing abuse, role bypass. The finding automated tools never generate.
Network Security Testing
Internal and external network assessment — open ports, misconfigured firewalls, lateral movement paths, and ransomware exposure vectors. We simulate the attacker who's already inside.
Threat Modeling
Architecture-level risk identification before you build. We map your threat surface and deliver a prioritised risk register — catch vulnerabilities at design time, not production.
Security Audits & Compliance Readiness
Cloud configuration reviews (AWS, GCP, Azure), database security assessments, and compliance-aligned gap analysis for SOC 2, ISO 27001, and India's DPDP Act.
🚨 Real-World Finding Example
A cart API accepted negative quantity values, allowing checkout at -₹23,960. No scanner flagged it. Our manual business logic testing caught it before it reached production.
Why SignalFence
The rigour of Big 4 advisory. The focus of a specialist firm built for product companies.
EY-Trained Lead Consultants
Our lead consultant brings 100+ engagements of experience from Big 4 advisory. Same rigour. Without the Big 4 invoice.
Manual Testing. Zero False Positives.
Every automated finding is manually validated before it reaches your report. You receive only confirmed, exploitable vulnerabilities.
Business Impact Focus
Findings are mapped to real business risk — written for CTOs and founders, not security teams.
Fixed-Scope Pricing
Priced by engagement, not by the hour. You know what you're paying before you sign.
NDA-Protected Engagements
Strict confidentiality. No data retained post-project. Responsible disclosure practices strictly followed.
Engagement Packages
Transparent, fixed-scope pricing. No surprises. All packages include CVSS-scored reports, proof-of-concept steps, developer-ready remediation guidance, and 1 round of re-testing. GST extra.
100+
Engagements Delivered
By our Big 4-trained lead consultants
0
False Positives
Every finding manually validated before delivery
4
Engagement Tiers
Fixed-scope, transparent pricing for every stage
When to Call Us
You need SignalFence if any of these apply to your situation right now.
SOC 2 Audit Incoming
Your SOC 2 Type II audit is in the next 90 days
Enterprise Deal Blocked
A prospect has asked for a pentest certificate before closing
Fundraising Round
You're raising a round and need clean security diligence
New Product Launch
You're launching a new API or product in the next quarter
Competitor Breach
A competitor just had a data breach and you're wondering if you're next
DPDP Compliance
India's DPDP Act is on your compliance radar
Our Methodology
A structured, four-phase engagement process that leaves no attack surface unexplored.
Every phase is executed manually by our lead consultant. No outsourcing, no junior analysts running automated tools unsupervised. Your draft report is reviewed with you before final delivery — ensuring findings are accurate, contextualised, and actionable.
Phase-by-Phase Breakdown
1
Phase 1
Information Gathering Understand your architecture, enumerate all URLs, endpoints, user roles, and data flows.
2
Phase 2
Application Fingerprinting Build a complete footprint of your stack — frameworks, library versions, API routes, hidden directories.
3
Phase 3
Vulnerability Analysis & Exploitation Authenticated and unauthenticated scanning, manual business logic testing, controlled exploitation using Burp Suite Pro, SQLmap, FFUF, and custom scripts. Every finding manually validated.
4
Phase 4
Reporting & Remediation CVSS-rated findings with proof-of-concept, business impact narrative, and developer-ready remediation steps. Draft reviewed with you. One round of re-testing included.
Tools We Use
Burp Suite Pro — Web application interception and manual testing
SQLmap — SQL injection detection and exploitation
FFUF — Fast web fuzzer for directory and endpoint discovery
Custom Scripts — Bespoke tooling for business logic exploitation
What You Receive
CVSS-scored vulnerability report with severity ratings
Proof-of-concept steps for every confirmed finding
Business impact narrative written for founders and CTOs
Developer-ready remediation guidance per finding
One full round of re-testing post-remediation
Ready to Find What Your Scanners Miss?
Every day without a manual pentest is a day an attacker has an advantage you don't know about. SignalFence closes that gap — with the rigour of Big 4 advisory, the focus of a specialist firm, and pricing built for growth-stage companies.
📧 Email Us
sales@signalfence.com
🌐 Visit Our Website
www.signalfence.com
🔒 First Step
Free Security Posture Review — no commitment required
SignalFence — Offensive Security for Product Companies. All engagements are NDA-protected. No data retained post-project. Responsible disclosure practices strictly followed.