Services Pentesting services Penetration testing services in Cardiff
+44 20 3996 1505

Penetration Testing Services in Cardiff

With cyber threats rising across Cardiff, businesses face increasing risks from ransomware, phishing campaigns, and data breaches. RedSecLabs delivers industry-leading penetration testing services in Cardiff, helping organisations identify and remediate vulnerabilities before attackers can exploit them.
Our UK-based ethical hackers simulate real-world cyberattacks across your infrastructure, applications, and cloud environments, delivering clear, actionable remediation that strengthens your security posture and supports regulatory compliance.

Request Your Pentesting Quote

Provide your details below or reach out to us for a tailored quote based on your project requirements.

What type of testing do you require?

✓ UK-based CREST member · ✓ QSA-aligned methodology · ✓ Same-day scoping response · ✓ Executive + technical reports · ✓ Retest included

Why organisations choose RedSecLabs

  • CREST-aligned penetration testing methodology
  • Experienced UK penetration testers
  • Clear, developer-ready remediation guidance
  • Trusted by growing UK businesses

Trusted Penetration Testing Services in Cardiff & South Wales

We support organisations across Cardiff city centre, Newport, Bridgend, Swansea, and the wider South Wales region.

Our Cardiff penetration testing team understands the local regulatory landscape and threat environment facing UK businesses. From fast-growing technology firms to established enterprises, our assessments are tailored to the real risks facing organisations across Wales.

Whether you are a SaaS provider, financial services firm, healthcare organisation, or e-commerce business, our penetration testing services in Cardiff are aligned to your risk profile and compliance requirements.

Why Organisations in Cardiff Need Penetration Testing

Cardiff is one of Wales' fastest-growing commercial and technology hubs. With the city's expanding fintech, public sector, and university ecosystem, digital adoption and, therefore, cyber risk continue to increase.

Without regular penetration testing, organisations risk:

GDPR regulatory penalties

Serious reputational damage

Financial losses from breaches

Operational downtime

Loss of customer trust

Failed security audits

Our penetration testing Cardiff services help businesses proactively manage cyber risk while demonstrating due diligence to clients, regulators, and investors.

What Is Penetration Testing?

In Simple Terms

In simple terms, penetration testing (pen testing) is ethical hacking used to test your security defences.

In Technical Terms

In technical terms, it is a controlled security assessment using recognised methodologies, manual exploitation techniques, and real-world attack simulation to identify exploitable vulnerabilities.

Unlike basic vulnerability scanning, our Cardiff penetration testing services combine expert manual testing with advanced tooling to deliver accurate, low-false-positive results.

Our Pen Testing Services in Cardiff

Web Application Penetration Testing

We identify critical web vulnerabilities, including:

  • SQL injection
  • Cross-site scripting (XSS)
  • Authentication and session flaws
  • Business logic vulnerabilities
  • API security weaknesses

Ideal for SaaS platforms, portals, and customer-facing applications.

Web Application Testing

Manual testing of your web apps against real-world attack scenarios.

Network Penetration Testing

External testing covers:

  • Internet-facing infrastructure
  • Firewall and perimeter controls
  • VPN security
  • Server exposure

Internal testing covers:

  • Lateral movement risks
  • Privilege escalation paths
  • Active Directory weaknesses
  • Network segmentation gaps

Network Security Testing

Internal and external network assessments to map your true attack surface.

Cloud Security Testing

We assess AWS, Azure, and hybrid environments for:

  • Misconfigurations
  • Excessive permissions
  • Insecure storage exposure
  • Identity and access weaknesses
  • Cloud API vulnerabilities

Cloud Security Testing

Specialist cloud assessments across AWS, Azure and hybrid environments.

Mobile Application Testing

Security testing for iOS and Android apps, including:

  • Data leakage risks
  • Insecure local storage
  • API and backend flaws
  • Authentication weaknesses
  • Reverse engineering exposure

Mobile App Testing

iOS and Android security assessments against real-world threats.

Social Engineering Simulation

Human-layer testing to measure real-world risk through:

  • Phishing simulations
  • Pretexting assessments
  • Security awareness evaluation

Each engagement is customised to your organisation's threat model.

Social Engineering

Tailored human-layer risk simulations including phishing and pretexting scenarios.

When Should You Conduct Pen Testing?

Cardiff organisations typically engage our penetration testing services when:

A client requires a security assessment

Preparing for ISO 27001 or Cyber Essentials

Following major infrastructure changes

Before product launch

After suspicious activity

During investor due diligence

After a competitor breach

Regular testing provides clarity on what attackers can access and how to stop them.

Technical Depth for Security Teams

Advanced Manual Exploitation

Our certified testers manually validate vulnerabilities to eliminate false positives and demonstrate real business impact.

Risk Prioritisation with CVSS

Findings are ranked using industry-standard CVSS scoring combined with business context.

Dual-Audience Reporting

You receive:

  • Executive summary for leadership
  • Technical remediation guide for engineers
  • Proof-of-concept evidence
  • Clear risk ratings and fix guidance
  • Optional remediation validation retest
Advanced Testing Approach

Built for Every Stakeholder

IT Teams
Board Level
Developers

Our Penetration Testing Services in Cardiff deliver both strategic clarity and technical precision.

Why Choose RedSecLabs for Penetration Testing in Cardiff

UK-Focused Security Expertise

Our team consists of experienced UK penetration testers following CREST-aligned methodologies and global best practices.

Industry Experience

We have tested environments across:

  • Finance and fintech
  • SaaS and technology
  • Healthcare
  • Education
  • E-commerce
  • Professional services

Clear, Actionable Reporting

No jargon overload, just practical remediation your team can implement quickly.

Confidential and Ethical

All engagements are conducted under strict NDA and responsible disclosure principles.

Compliance and Regulatory Support

Our Cardiff penetration testing services help support compliance with:

  • UK GDPR
  • ISO/IEC 27001
  • Cyber Essentials / Cyber Essentials Plus
  • PCI DSS
  • FCA expectations (where applicable)
Get Instant Pricing

How Much Will Your Penetration Test Cost?

Stop guessing. Use our interactive estimator to get a tailored cost estimate in under 2 minutes; based on your scope, infrastructure type and testing requirements.

Calculate My Pentest Cost

Takes about 90 seconds

Penetration Test Estimator
Scope Web Application
Test Type Black Box
User Roles 3 roles
Estimated Cost £2,800, £4,500
Duration 3, 5 days
Get your real estimate →
6+ Test types covered
2 min Average completion
Free No commitment

The Cost of Ignoring Security Testing

A single cyber incident can result in:

Proactive penetration testing is significantly more cost-effective than breach recovery.

Data loss

Regulatory fines

Operational downtime

Customer churn

Brand damage

About RedSecLabs

RedSecLabs is a UK-focused cybersecurity consultancy specialising in penetration testing, cloud security, and adversarial simulation. Our mission is to help organisations build resilient, compliant, and attack-ready environments through practical, evidence-driven security testing.

Cardiff's Trusted Security Partner

Secure Your Organisation Today

If you are searching for penetration testing services in Cardiff, RedSecLabs is ready to help.

Book your consultation today and identify your security gaps before attackers do.

Book a Consultation Talk to an Expert
99% Recovery Rate
24/7 Expert Support
9+/10 Client Satisfaction
CREST Accredited

What our Customer are Saying

We are trusted by organisations across diverse industries to meet their needs

“Working as a cybersecurity consultant, RedSecLabs has improved the security posture of Bykea by formulating a Cybersecurity Framework for Developers and had worked towards incorporating DevSecOps. It had also contributed towards improving Bykea's vulnerability disclosure program (VDP) by preparing end-to-end process documents and has developed relevant policies to facilitate the organisation's security posture. Given, RedSecLabs' broad experience in a wide range of cybersecurity domains, it can be a tremendous asset to any organisation.”

client
Muneeb Maayr CEO, Bykea
Rating

“RedSecLabs was a pleasure to work with. Its knowledge of the cybersecurity space was impressive. It helped us build a specific capability we'd been looking at for a while. It was responsive to our questions and quick to turn the work around. It also took our feedback on board and made changes to the work where appropriate. We'd definitely work with RedSecLabs.”

client
Ed Hutchinson The Independent
Rating

“The team at RedSecLabs is very communicative and responds quickly. They are highly knowledgeable in what they do and make suggestions when needed. I felt very comfortable with RedSecLabs performing the pen test in our environment and felt like we were in good hands. I would highly recommend RedSecLabs for any pen testing jobs you may have. ”

client
Aleks Daranutsa Nhebo
Rating

“We are very pleased with the services provided by RedSecLabs. They were highly professional, and their work was outstanding. The team at RedSecLabs went above and beyond during the course of the project. When an unforeseen issue arose mid-project, they took the initiative and helped us repair an additional issue, unrelated to the original scope. This saved us a considerable amount of time and resources. We will continue working with RedSecLabs on future projects and look forward to a long-term partnership.”

client
Bill Fahy Atlantic Firearms
Rating

“RedSecLabs has been instrumental in solving Work Generations Cybersecurity challenges. Their expert team provides unparalleled protection and swift responses to potential threats. Their innovative solutions and dedication to client security are truly commendable. Highly recommend RedSecLabs for high-quality cybersecurity services.”

client
Shawana Iftikhar Work Generations
Rating

Frequently Asked Questions (FAQs) Answers

Costs vary based on scope, complexity, and testing depth. We provide transparent fixed-scope quotes after a brief consultation.

Most organisations test annually. High-risk or rapidly changing environments may require quarterly testing.

Not always mandatory, but many standards (ISO 27001, PCI DSS, Cyber Essentials Plus) require regular security testing.

Vulnerability scanning is automated and identifies potential weaknesses. Penetration testing involves manual exploitation to confirm real-world risk.

Yes. We provide detailed remediation guidance and optional retesting to validate fixes.
Before you decide
Download a sample report →
A redacted RedSecLabs penetration test report. See the format, depth, and clarity your team will receive.
Talk to us
Book a scoping call →
A 30-minute call covers realistic effort, timeline, and a fixed-scope quote. CREST-aligned methodology, UK-based testers.
What you receive

Every engagement includes

  • ✓ Scoping call. A 30-minute call to define scope, timeline, and authorisation boundaries.
  • ✓ Test plan. Written test plan covering targets, methodology, and rules of engagement.
  • ✓ Technical report. Detailed findings with reproduction steps, evidence, and remediation guidance.
  • ✓ Executive summary. Board-ready summary with risk ratings and business impact.
  • ✓ Audit-ready evidence. Findings letter formatted for auditors, customers, and supervisory authorities.
  • ✓ Retest letter. Free retest of remediated findings within agreed window. Confirmation letter included.
  • ✓ Remediation call. A call with our lead tester to walk through findings and remediation strategy.
How we deliver

Our process, end to end

  1. 1
    Scoping call & fixed-scope quote
    A 30-minute call. We define scope, targets, timeline. You get a fixed-scope quote within one working day.
  2. 2
    Test plan & authorisation
    Written test plan covering methodology, targets, and rules of engagement.
  3. 3
    CREST-aligned execution
    Senior tester runs the engagement. Critical findings flagged immediately during testing.
  4. 4
    Technical + executive report
    Detailed technical findings with reproduction steps. Board-ready executive summary.
  5. 5
    Remediation call & retest
    Walkthrough with our lead tester. Retest of remediated findings within the agreed window.
Engagement scope

What shapes the quote

Small scope
Focused scope, smaller surface. 5-7 working days.
Medium scope
Multi-role, several integrations. 8-12 working days.
Enterprise scope
Complex environment, compliance evidence. 12-25 working days.
Fixed-scope quote within 1 working day
No surprise invoices. We commit to a number before you commit to us.
📞 Call us Book a call