CREST Accredited  ·  UK Based

We illuminate
your cyber risk.

Delivering expert penetration testing and security assurance to organisations across the UK, identifying vulnerabilities before attackers can exploit them.

What We Do

Security testing
you can rely on.

From infrastructure to applications, our CREST-certified consultants deliver rigorous, intelligence-led testing that gives you a true picture of your security posture.

Network Penetration Testing

Internal and external network assessments identifying exploitable weaknesses across your infrastructure before malicious actors can reach them.

Infrastructure
Web Application Testing

Assessment of your application's business logic and exposure to OWASP Top 10 vulnerabilities, including injection, broken authentication, and access control flaws.

Application Security
API Penetration Testing

REST and GraphQL API security assessments covering authentication, authorisation, input validation, rate limiting, and business logic flaws.

API Security
Cloud Security Assessment

Configuration reviews and penetration testing of AWS, Azure, and GCP environments, identifying misconfigurations and privilege escalation paths.

Cloud
Red Team Exercises

Adversary simulation campaigns testing detection and response capabilities against real-world threat actor TTPs, using bespoke scenarios tailored to your threat landscape.

Adversary Simulation
Social Engineering

Bespoke phishing campaigns built around real-world pretexts to measure employee awareness and your organisation's security culture.

Human Factors
Wireless Assessments

Assessment of wireless network security including encryption standards, access controls, guest network isolation, and segmentation configuration.

Wireless
Active Directory Password Auditing

Offline password hash analysis to identify weak, reused, and compromised credentials across your Active Directory environment.

Credential Security
More Services
View all services.

Explore our full range of security assessments and certification support.

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How We Work

A clear process.
Transparent delivery.

A structured engagement model designed to minimise disruption while maximising the depth and value of every finding.

01

Scoping & Planning

We work with you to define precise scope, objectives, and success criteria. Clear rules of engagement ensure testing is aligned with your business requirements and risk appetite.

02

Testing & Discovery

Our certified consultants conduct thorough testing combining manual and automated techniques, with deep technical expertise. Findings are validated and CVSS risk-rated.

03

Reporting & Remediation

You receive a clear executive and technical report with prioritised findings, pragmatic remediation guidance, and ongoing support from the Illume team.

CREST Accredited
Accreditation

CREST accredited.
Recognised quality.

Illume Security holds CREST accreditation, the internationally recognised standard for technical security testing. Our methods, processes, and people meet recognised professional standards for security testing.

When you engage us, you can be confident the assessment is carried out by qualified professionals operating within a rigorous framework of best practice and ethics.

  • Experienced consultants with recognised industry certifications
  • Rigorous quality assurance and peer review on every engagement
  • Testing methodology aligned to industry standards including OWASP and PTES
  • Delivering security assessments to UK businesses of all sizes
Client Feedback

What our clients
say about us.

"

I was thoroughly impressed with the support provided by Illume during the testing process. Their team was readily available to answer questions and offer expert guidance on the recommended actions. Based on this positive experience, I highly recommend Illume's services.

TW
Teresa W. Head of IT, Construction
"

From the initial scoping call, it was clear that Illume are forward-thinking Cyber Security specialists, with new and innovative ways of performing tests and then presenting that information to their clients. I highly recommend Illume and will certainly be engaging with them again.

AH
Alex H. Infrastructure Manager, Legal
"

Illume Security has demonstrated a consistently high level of performance. Their approach is proactive and inquisitive, and they routinely explore emerging attack methods. Reports and deliverables are always provided on schedule, and their communication during each penetration test is a breath of fresh air.

JG
John G. Co-CEO, IT MSP
Get Started

Ready to illuminate
your cyber risk?

Talk to our team today. We'll help you understand your exposure and design an assessment programme that fits your needs and budget.