Cyber Security Consulting and Testing Services

Cyber security consulting services help organisations identify, assess and manage security risks across systems, applications and operations. At Resillion, this includes penetration testing, secure code reviews, compliance gap analysis, device security testing and advisory support such as CISO-as-a-Service.

Penetration testing or 'pen testing’ is a simulated cyberattack designed to find vulnerabilities before real attackers do. It helps organisations understand their true exposure, prioritise fixes, and meet compliance requirements. Pen testing is one of the most effective ways to strengthen overall cyber resilience.

Vulnerability scanning uses automated tools to identify potential weaknesses, while penetration testing goes further by manually exploiting vulnerabilities to understand real-world impact. Resillion’s penetration testing services simulate how attackers actually operate — providing actionable insights beyond a basic scan.

Most organisations run penetration tests at least once or twice a year, or whenever there’s a significant change in infrastructure, applications, or regulations. For continuous assurance, many clients use Resillion’s automated and AI-supported testing to maintain year-round visibility.

Yes. Penetration testing supports a wide range of compliance frameworks such as DORA, NIS2, ISO 27001, PCI DSS, and IEC 62443. It demonstrates proactive security management and provides evidence for regulators and auditors.

Depending on the size and complexity of the environment, most pen tests take between one and three weeks, including reporting. Resillion typically delivers results within 5–10 business days after testing is complete.

Resillion delivers cyber security consulting and penetration testing services worldwide, with offices in the UK, the Netherlands and India and the ability to work remotely or on-site as needed.