What do cyber security consulting services include?

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.

What is penetration testing and why is it important?

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.

What's the difference between vulnerability scanning and penetration testing??

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.

How often do I need to do pen testing?

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.

Can penetration testing help with compliance?

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.

How long does a pen test typically take?

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.

Do you provide cyber security consulting or testing globally?

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.

Cyber Security Consulting and Testing Services

Every digital advantage creates a new risk

Your attack surface is growing and at the same time compliance expectations are rising.

Why cyber security consulting matters now

Traditional security approaches can’t keep pace with evolving threats.
Without expert advice, blind spots in code, process and infrastructure can turn into costly incidents.

What if you could stay ahead of attackers, not react to them?

Imagine knowing where your weaknesses are before anyone else does. Test smarter, not slower and turn compliance into confidence.

Exec presenting cyber consulting services

Our cyber security consulting and testing services

We combine deep technical expertise and realistic advice to help you strengthen your security posture and meet compliance goals.

Penetration testing services

Find the gaps before attackers do. Real-world testing across web, mobile, APIs and infrastructure – including red team simulations for true threat insight. Explore penetration testing

Red teaming

Red Teaming goes beyond finding vulnerabilities. We simulate real-world attackers to test your people, processes, and technology, showing how your organisation stands up to today’s advanced cyber threats and giving the insights needed to strengthen resilience.

Red teaming services

Build security into your code from day one. Identify weaknesses early with expert code review, SSDLC uplift and developer training that reduces risk and rework.

Turn compliance into confidence. Our experts assess, align, and strengthen your frameworks against DORA, NIS2, CRA and more – making audits smoother and reporting clearer.

If it connects, we can test it. From IoT and automotive systems to embedded tech and RF analysis, we secure every device in your ecosystem – helping you meet RED, PSTI, and other regulatory requirements.

The benefits of working with Resillion

When you partner with Resillion for cyber security consulting and penetration testing services, you gain:

Clarity on risk – see exactly what attackers see

Developers and testers working on automation and test execution

Confidence in compliance – demonstrate readiness for any audit

Actionable insight – fix what matters most

Speed and assurance – faster testing with meaningful results

SOC analyst monitoring security incidents

Independent expertise – we test, you fix, no conflicts of interest

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Why choose Resillion for cyber consulting and testing services?

Our team has decades of experience testing critical systems – from telecoms to energy and finance.
Blending technical precision with practical guidance we help you stay secure, compliant and confident.

We tested a drone, a gantry crane, even telecom equipment - things most firms wouldn’t touch. That’s what makes us different.

Dirk-Jan Bartels, Resillion

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Cyber Security Consulting and Testing Services

Why cyber security consulting matters now