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Penetration Testing

We hack you first.
So attackers
can't.

Expert whitehat hackers using the same tools, techniques, and strategies as real adversaries — uncovering vulnerabilities before they can be exploited, and delivering clear steps to close every gap.

Schedule a Pentest View test types
radical-pentest — external_recon.sh
$./recon.sh --target client.example.com
[+] Initializing external reconnaissance...
[+] Enumerating subdomains... found 47 hosts
[+] Port scanning open services...
[!] Port 8443 open — admin panel exposed
[!] Port 22 open — SSH with default credentials
$./exploit.sh --module ssh_brute --host 203.0.113.42
[+] Attempting authentication...
[CRITICAL] Login successful — [email protected]
[CRITICAL] Full system compromise achieved
$./report.sh --generate --severity critical
[+] Generating remediation report...
[+] 3 critical · 8 high · 12 medium findings
[+] Report ready for client delivery
$
Overview

Real attacks. Real findings. Real fixes.

Penetration testing plays a vital role in any comprehensive cybersecurity strategy. At Radical Security, our team of expert whitehat hackers simulates real-world attacks using the same tools, techniques, and strategies that cybercriminals employ — the goal is to find and fix vulnerabilities before they can be exploited.

New clients are often surprised by what we uncover, even in environments they believe are secure. For our ongoing clients, deep familiarity with their systems and business operations allows us to deliver even more targeted and effective assessments over time.

We focus on real, actionable vulnerabilities — not theoretical risks or the false positives commonly generated by automated tools. Every finding comes with clear remediation steps and a report designed to satisfy auditors, executives, and technical teams alike.

100%
Of clients discover previously unknown critical vulns
48h
Average time to critical finding on new engagements
200+
Penetration tests completed across all industries
What we deliver
Every engagement
includes
Custom attack scenarios
Tailored to your specific environment, industry, and threat model
Real exploitation, not just scanning
We verify vulnerabilities are actually exploitable — no false positives
Executive & technical reports
Clear narrative for leadership, detailed findings for your engineers
PCI-DSS compliant documentation
Reports satisfy PCI, HIPAA, NIST, and SOC 2 audit requirements
Remediation guidance & retesting
We verify your fixes actually work — not just your word for it
Debrief with your team
Walkthrough session so your team understands every finding and fix
Segmentation testing (PCI)
Verifies CDE isolation and prevents lateral movement paths
Service Types

Every surface covered

External
External Network Pentest
Simulates an attacker with no internal access targeting your internet-facing assets — web apps, APIs, VPNs, mail servers, and any exposed infrastructure.
Internet-facing OSINT Network DNS
Internal
Internal Network Pentest
Assumes an attacker already has a foothold inside your network. Tests lateral movement, privilege escalation, and access to critical assets from within.
Active Directory Lateral Movement Priv Escalation
Web App
Web Application Pentest
Bespoke testing tailored to your application's architecture. Automated scanners miss complex, nuanced issues in custom software — our manual approach doesn't.
OWASP Top 10 Auth Flaws Injection Logic Bugs
Mobile
Mobile Application Pentest
iOS and Android application testing covering insecure data storage, improper session management, API security, and binary analysis.
iOS Android API Security OWASP Mobile
Cloud
Cloud Infrastructure Pentest
AWS, Azure, and GCP configuration testing — misconfigured storage, overprivileged IAM roles, exposed metadata services, and insecure serverless functions.
AWS Azure GCP IAM S3
PCI-DSS
PCI Penetration Testing
Specifically designed to meet PCI-DSS requirements. Includes cardholder data environment testing, segmentation verification, and compliant reporting documentation.
CDE Testing Segmentation Compliance
Our Methodology

How we run every engagement

We commonly perform gray-box penetration tests — where a brief synopsis of your environment is provided upfront, eliminating irrelevant test techniques and maximizing efficiency. Every engagement follows a rigorous, structured methodology aligned to NIST, PTES, and OWASP standards.

01
Reconnaissance
OSINT gathering, subdomain enumeration, exposed service discovery, and attack surface mapping.
02
Scanning & Enumeration
Active service fingerprinting, vulnerability identification, and configuration review across all in-scope assets.
03
Exploitation
Manual exploitation of confirmed vulnerabilities to demonstrate real-world impact and validate exploitability beyond theoretical risk.
04
Post-Exploitation
Lateral movement, privilege escalation, and data access demonstrations to show the full potential impact of a successful breach.
05
Reporting & Remediation
Comprehensive report with prioritized findings, business context, proof of concept, and actionable remediation steps. Retesting included.
PCI-DSS Compliance

Meeting PCI penetration testing requirements

PCI-DSS requires regular penetration testing of systems and applications — our service is specifically designed to satisfy these requirements while also improving your broader security posture.

Annual & post-change testing
PCI Requirement 11.4 mandates annual penetration tests and after any significant changes. We keep you on schedule and compliant.
CDE segmentation testing
Verifies that your cardholder data environment is properly isolated and no lateral movement paths exist between CDE and non-CDE systems.
Audit-ready documentation
Reports explicitly document methodology, scope, findings, and remediation — meeting the exact reporting format required by PCI QSAs.
Compliance frameworks covered
PCI-DSS v4.0 HIPAA NIST SP 800-115 SOC 2 Type II ISO 27001 FFIEC CMMC FISMA
What our reports include
Executive summary with business risk narrative
Full testing methodology and scope documentation
Prioritized findings with CVSS scores and business impact
Proof-of-concept evidence for every confirmed finding
Step-by-step remediation guidance per finding
Retest results confirming remediation effectiveness
PCI-DSS Requirement 11.4 compliance attestation
Why Radical Security

We think like
attackers, not auditors

Most penetration tests are checklist exercises. Ours aren't. We bring the mindset of a real adversary to every engagement — and we don't stop at finding vulnerabilities. We verify exploitation, demonstrate impact, and stay until every issue is closed.

Attacker Mindset
Our team thinks like the adversaries most likely to target you — using real TTPs, chaining vulnerabilities, and pursuing the same objectives as a genuine attacker would.
No False Positives
We manually verify every finding is genuinely exploitable. No automated scan dumps. No noise. Just real vulnerabilities with real proof-of-concept evidence.
Deeper with Time
Ongoing clients benefit from our institutional knowledge of their systems. Each successive engagement is more targeted, more efficient, and more impactful than the last.
We Stay Until It's Fixed
We don't hand over a report and disappear. Remediation guidance, fix verification, and retesting are included — because a finding that isn't fixed isn't really a finding.
What clients say

Heard it from the teams we protect

★★★★★

"We can always count on the Radical Security penetration test team to find the subtle bugs that have the possibility to become a big security problem. Not only thorough — amazingly knowledgeable."

MN
Chief Technology Officer
Micro Notes
★★★★★

"What stood out is how closely they integrated with us and the clarity they brought to strengthening our InfoSec capabilities. Easily one of the best vendors in my 20-year career."

WH
Chief Technology Officer
Wheel Health
★★★★★

"Radical Security provides pragmatic and actionable solutions which align with our rapid growth. They understand that it's not just about security for security's sake."

LA
Chief Product Officer
Luminary Audio

Ready to find out what
an attacker would find?

Our project management team will work with you to design a custom engagement that is both efficient and an effective test of your actual security posture.

Schedule a Pentest
Custom scoping at no charge. No commitment required.
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