Protect Your Business FromCyber ThreatsBefore They Strike
UK's leading penetration testing experts. We find vulnerabilities before hackers do, keeping your business secure and compliant.
Enterprise-Grade Penetration Testing
Our certified security experts use advanced techniques to identify vulnerabilities across your entire digital infrastructure before malicious actors can exploit them.
Web Application Testing
Comprehensive security testing for your web applications to identify vulnerabilities before attackers do.
- OWASP Top 10
- API Security
- Authentication Testing
- Session Management
Stealer Logs & Dark Web Monitoring
Proactive monitoring of dark web forums and stealer logs to detect compromised employee credentials.
- 24/7 Monitoring
- Instant Alerts
- Credential Recovery
- Threat Intelligence
Architecture & Infrastructure Review
Complete security audit of your IT architecture identifying configuration weaknesses and design flaws.
- Cloud Security
- Network Segmentation
- Access Controls
- Compliance Check
Social Engineering & Phishing
Test your human firewall with sophisticated phishing campaigns and social engineering assessments.
- Email Phishing
- Vishing Tests
- Physical Security
- Staff Training
Not sure which service you need? Our security experts can help assess your requirements.
Our Penetration Testing Process
Following industry-standard methodologies including OWASP, PTES, and NIST frameworks to ensure comprehensive security coverage.
Discovery & Reconnaissance
We map your digital footprint, identifying all potential entry points and gathering intelligence like real attackers would.
Vulnerability Assessment
Using automated tools and manual techniques, we identify weaknesses in your systems, applications, and configurations.
Exploitation & Testing
We safely attempt to exploit vulnerabilities to understand their real-world impact on your business operations.
Reporting & Remediation
Receive a detailed report with prioritized findings, remediation guidance, and executive summary for stakeholders.
Why Choose XL Marketing for Penetration Testing?
Our team of certified ethical hackers has protected hundreds of UK businesses from cyber threats. We combine technical expertise with business acumen to deliver actionable security insights.
Our Certifications & Accreditations
All tests conducted under strict NDA with full liability insurance coverage
Penetration Testing Packages
Choose the security assessment package that best fits your needs. All packages include comprehensive reporting and expert remediation guidance.
Essential
Starting from
Perfect for small businesses and startups
- Web application testing (up to 3 apps)
- Basic vulnerability assessment
- OWASP Top 10 coverage
- Executive summary report
- 48-hour turnaround
- Remote testing only
- Email support
Professional
Average investment
Our most popular package for growing businesses
- Everything in Essential, plus:
- Up to 5 environments tested
- Stealer logs & credential monitoring
- Social engineering assessment
- Detailed technical report
- 2-week delivery
- Remediation guidance
- Phone & email support
Enterprise
Custom pricing
Comprehensive security for large organizations
- Everything in Professional, plus:
- Unlimited environments
- Architecture review included
- Development team to fix issues
- Government standard compliance
- 4-week engagement
- Quarterly retesting
- 24/7 priority support
- On-site testing available
What Our Clients Say
Don't just take our word for it - hear from businesses we've helped secure
"XL Marketing's penetration testing revealed critical vulnerabilities we never knew existed. Their team not only found the issues but helped us fix them quickly. Outstanding service!"
James Harrison
CTO, TechFlow Solutions
"The most thorough security assessment we've ever had. The report was incredibly detailed yet easy to understand. We now have complete confidence in our security posture."
Sarah Mitchell
IT Director, Global Finance Ltd
"Their dark web monitoring service found our compromised credentials within hours. This proactive approach saved us from a potential disaster. Highly recommended!"
Michael Chen
Security Manager, RetailChain UK
Still have questions about our penetration testing services?
Our security experts are here to help
Your Business Is Under ThreatRight Now
Active Cyber Threats Detected Today
And counting...
60% of SMEs
Go out of business within 6 months of a cyber attack
£2.9 Million
Average cost of a data breach in the UK
Every 39 Seconds
A cyber attack occurs somewhere in the world
Don't wait until it's too late. Our penetration testing can identify your vulnerabilities before cybercriminals do. Protect your business, your customers, and your reputation.
Real Security Victories
See how we've helped UK businesses transform their security posture and protect their most valuable assets from cyber threats.
Major UK Bank Security Overhaul
The Challenge
Legacy systems with 50+ critical vulnerabilities exposing customer data
Our Solution
Comprehensive penetration testing and architecture review
"XL Marketing's team identified vulnerabilities our internal audits missed. Their expertise saved us from a potential catastrophe."
Key Results
- 100% vulnerability remediation
- PCI DSS compliance achieved
- £2.5M potential breach costs avoided
- Customer trust score increased 40%
NHS Trust Ransomware Prevention
The Challenge
Ransomware threats targeting patient data and critical systems
Our Solution
Dark web monitoring and proactive security hardening
"Their dark web monitoring service found compromised staff credentials before criminals could use them. Absolutely vital service."
Key Results
- 15 compromised credentials recovered
- Zero ransomware incidents post-implementation
- 99.9% system uptime maintained
- DSPT compliance maintained
Retail Giant Customer Data Protection
The Challenge
Processing 100K+ daily transactions with outdated security
Our Solution
Web application testing and continuous security monitoring
"The ROI on their penetration testing was immediate. We prevented breaches that would have destroyed our reputation."
Key Results
- 37 critical vulnerabilities patched
- Payment card fraud reduced 95%
- £500K annual security costs saved
- Customer checkout conversion +15%
Ready to Secure Your Business?
Join hundreds of UK businesses that trust XL Marketing to protect their digital assets.