See your business the way an attacker sees it.
DefendSec runs the same reconnaissance a real adversary would — mapping your exposed infrastructure, leaked data, and weak points — then proves what is actually exploitable through hands-on penetration testing.
// No agents installed. No disruption. Nothing touched you don't already expose publicly.
Four ways to close the gap between exposed and secure.
Every engagement starts with what an attacker can already see, then moves only as deep as the risk warrants.
Passive Reconnaissance & OSINT Assessment
Before you spend a cent on testing, find out what's already public. We map your external attack surface, leaked credentials, and misconfigurations — entirely from open sources, with zero contact to your systems.
- subdomain enumeration
- TLS / header analysis
- breach exposure
- CMS fingerprinting
- severity-ranked report
Penetration Testing
Hands-on, manual exploitation of web applications, networks, and infrastructure. Not a scanner dump — a tester proving exactly how far an attacker gets and what it costs you.
- web app
- external / internal network
- infrastructure
- privilege escalation
- retest included
Vulnerability Management Enablement
Helping you choose the right vulnerability management platform for your environment and budget, then standing it up properly — scanning, risk-based triage, and reporting that cuts through CVE noise. You own and run the program; I get it working.
- tool selection
- implementation
- triage workflow design
- team enablement
Security Consultancy
Posture reviews, architecture assessment, and compliance-aware guidance. Practical advice from someone who breaks systems for a living — mapped to GDPR, NIS2, and your sector's obligations.
- posture review
- architecture assessment
- GDPR / NIS2
- secure design
A sequence, not a black box.
You see what's found at every stage — and exactly what it means in business terms.
Reconnaissance
Map the public attack surface using open sources. Nothing touched, nothing installed.
Assessment
Scope and scan the agreed targets. Separate real risk from scanner noise.
Exploitation
Manually prove what's exploitable, safely and within strict rules of engagement.
Reporting
Findings ranked by severity, with business impact and clear remediation steps.
Remediation
Support your team through fixes, then retest to confirm the gap is closed.
Run by a practitioner, not a sales desk.
DefendSec is a hands-on offensive-security practice with over a decade spent breaking and defending systems across banking, telecom, automotive, and defence.
The work has been delivered inside demanding environments — regulated financial institutions, critical infrastructure, and enterprise estates — where a finding has to be both technically real and explainable to the people who sign off the budget.
Every assessment is performed personally. No junior hand-off, no offshore scanner farm. You talk to the person doing the testing.
More about the practitioner →Credentials
Request a free passive assessment.
No commitment, no access to your systems — just a clear picture of what an attacker can find about you today, with the critical items flagged. If it's useful, we talk about going deeper.