ISO 27001 Penetration Testing Services

Validate your security controls, meet Annex A requirements, and achieve certification with expert penetration testing mapped to ISO 27001.

Why ISO 27001 Requires Proactive Penetration Testing

ISO 27001, the world's leading information security standard, recognises penetration testing as a key component of a mature risk management program. While the standard does not prescribe a specific testing methodology, it mandates ongoing risk assessment, control validation, and continuous improvement. Annex A control A.12.6.1 (Technical Vulnerability Management) explicitly requires organisations to obtain information about technical vulnerabilities, evaluate their exposure, and implement appropriate measures to address associated risks. Penetration testing provides the most robust evidence for auditors that these requirements are met, going beyond vulnerability scanning to validate exploitability and business impact.

Our Comprehensive ISO 27001 Testing Services

We deliver a full suite of testing services aligned to ISO 27001 Annex A controls, ensuring every aspect of your ISMS is rigorously evaluated by certified professionals.

External & Internal Network Testing

Simulates attacks from outside and inside your network to identify vulnerabilities in firewalls, routers, servers, and Active Directory. This validates controls related to access management (A.9) and operations security (A.12).

Web Application & API Testing Thoroughly evaluates your web applications, APIs, and microservices for common flaws like injection attacks and broken authentication, critical for protecting sensitive data covered by your ISMS.

Cloud Infrastructure Testing

Assesses your cloud environments (AWS, Azure, GCP) to ensure configurations are secure and your data is protected, aligning with the modern scope of ISO 27001 audits.

Vendor & Supply Chain Testing

Where your ISMS scope includes third-party systems, we test these connected systems to ensure they meet the requirements of Annex A.5.23 (Information security in the ICT supply chain).

Our Audit-Ready ISO 27001 Penetration Testing Methodology

We follow a structured, transparent process that blends recognized industry frameworks like OWASP, NIST SP 800-115, and OSSTMM with ISO's continuous improvement approach [citation:5]. This ensures your test delivers measurable security and compliance value.

Planning & Scoping: We work with your compliance and IT teams to define objectives, scope, and methodologies (black/white/grey box), ensuring alignment with your ISMS risks and controls.
Reconnaissance & Threat Modelling: We gather information about your targets, identify potential entry points, and develop strategies to attack your systems.
Vulnerability Analysis: We use advanced tools to identify potential weaknesses in your systems.
Controlled Exploitation: We attempt to exploit identified vulnerabilities to gain access, escalate privileges, or exfiltrate data, simulating real-world attacks in a controlled environment.
Analysis & Audit-Ready Reporting: We compile a detailed report including an executive summary, technical findings with proof-of-concept, risk severity ratings, and clear remediation steps mapped to ISO 27001 controls (like A.12.6.1).
Remediation Support & Retest: We provide guidance on fixing issues and can perform a follow-up test to verify that vulnerabilities have been successfully resolved.

Why Choose Fortuna Data for ISO 27001 Compliance

With over 32 years of experience and a team of certified professionals, we combine deep technical security expertise with a business-focused approach to help you achieve and maintain ISO 27001 certification.

Certified Experts

Our team holds industry-leading certifications and has a proven track record of helping organizations achieve ISO 27001 certification.

Auditor-Approved Deliverables You receive a professional report structured to provide evidence against Annex A requirements, easily understood by QSAs and certification bodies.

Modern & Cloud-Ready Testing

Our testing scope aligns with modern ISMS environments, covering cloud infrastructure, SaaS applications, and build pipelines.

Proven Remediation Support

Beyond identifying issues, we help you fix them. We provide engineer-to-engineer sessions and optional retesting to close findings with confidence.

Ready to Secure Your ISO 27001 Certification?

Don't leave compliance to chance. Contact us today for a free initial consultation to define your scope and start your journey to ISO 27001 certification.

Contact Our ISO 27001 Experts