NIS2 is in force, and organisations across Europe now face higher expectations around cybersecurity risk management, resilience, incident handling and supply chain security.

Integrity360 helps organisations support NIS2 compliance through expert-led cybersecurity testing services that provide practical insight, clear reporting and prioritised remediation guidance.

What is cybersecurity testing for NIS2 compliance?

Cybersecurity testing for NIS2 compliance is the process of assessing an organisation’s technology, processes and security controls to identify weaknesses that could affect the confidentiality, integrity or availability of critical systems.

This can include testing networks, applications, cloud platforms, APIs, identity environments, remote access services, suppliers, users and incident response processes.

For organisations in scope of NIS2, testing helps answer important questions:

• Are critical systems properly protected?
• Can attackers exploit weaknesses in our infrastructure?
• Are cloud environments configured securely?
• Are access controls effective?
• Could attackers move laterally through the network?
• Would our teams detect and respond to a real attack?
• Are third-party connections creating additional risk?

These questions matter because NIS2 requires organisations to manage cybersecurity risk in a demonstrable way. Testing provides the evidence needed to move beyond assumption and prove that controls are being assessed.

Why NIS2 compliance requires evidence

NIS2 places strong emphasis on risk management, incident handling, business continuity, supply chain security, access control, encryption, vulnerability management and crisis response. These areas all depend on one core principle: organisations must understand their risk and take appropriate action to reduce it.

A written policy may state that systems are patched. A penetration test can show whether exploitable weaknesses remain. A governance framework may define access control requirements. An Active Directory or Entra ID assessment can reveal whether excessive privileges, weak authentication or misconfigurations still create risk. An incident response plan may look complete, but a red team exercise can show whether people, processes and technology work under pressure.

This is why cybersecurity testing is so valuable for NIS2 compliance. It produces evidence that risks are being identified, controls are being validated and improvements are being made.

For senior leaders, this evidence is especially important. NIS2 increases accountability for management bodies, which means executives need visibility of cybersecurity risk in a format they can understand and act on. Integrity360’s reporting helps translate technical findings into business impact, remediation priorities and compliance-relevant insight.

How penetration testing supports NIS2 compliance

Penetration testing is one of the most effective ways to assess how an attacker could target an organisation.

A penetration test simulates real-world attack techniques to identify exploitable weaknesses across infrastructure, applications, cloud services and connected systems. It helps organisations understand not only what vulnerabilities exist, but how those weaknesses could be used to gain access, escalate privileges, steal data or disrupt services.

For NIS2 compliance, penetration testing supports key areas such as risk management, vulnerability handling, incident prevention, access control assurance and business continuity planning.

Integrity360’s penetration testing services are delivered by experienced ethical hackers who assess environments from an attacker’s perspective. Findings are clearly explained, prioritised by risk and supported with practical remediation guidance, enabling organisations to address the issues that matter most.

Why vulnerability scanning alone is not enough

Vulnerability scanning is useful, but it should not be mistaken for full security testing.

A scan can identify known vulnerabilities, missing patches or insecure configurations. However, it may not show whether those weaknesses can be exploited, how they connect to other risks or what impact they could have on the organisation.

Penetration testing adds context. It helps determine whether a weakness is theoretical or exploitable. It can reveal attack paths that combine several issues, such as an exposed service, weak credentials and excessive privileges. This context is vital for NIS2 compliance because organisations need to prioritise risk based on potential impact, not just technical severity.

Integrity360 helps organisations move from basic visibility to meaningful risk reduction by combining expert analysis with clear, actionable recommendations.

Testing the full attack surface

Modern organisations operate across complex environments. Attackers may target networks, endpoints, cloud platforms, SaaS applications, APIs, identities, remote users, suppliers, mobile apps and internet-facing assets.

NIS2 reflects this reality by focusing on broad cybersecurity risk management. As a result, testing should not be limited to one area.

Integrity360 provides a wide range of cybersecurity testing services, including:

• Penetration testing for internal and external infrastructure
• Web application and API testing
• Mobile application security testing
• Cloud security testing across AWS, Microsoft Azure and Google Cloud
• Active Directory and Entra ID assessments
• Wireless and IoT security testing
• Social engineering assessments
• Red team exercises
• Vulnerability assessments
• Penetration Testing as a Service

Together, these services help organisations build a clearer picture of their security posture and identify where NIS2 compliance efforts should be focused.

Cloud, application and identity testing for NIS2

Cloud, application and identity security are especially important for organisations working towards NIS2 compliance.

Cloud environments often contain sensitive data, critical workloads and complex permission structures. Misconfigured storage, excessive access rights, weak logging or exposed services can create serious risk. Integrity360’s cloud security testing helps identify these issues and provides guidance to strengthen configuration, access control and monitoring.

Applications and APIs are also common attack targets. Weak authentication, broken access controls, injection flaws and insecure data handling can expose organisations to disruption or data compromise. Application and API testing helps organisations secure the digital services that customers, employees and partners rely on.

Identity security is equally critical. Many cyber attacks begin with compromised credentials or poor privilege management. Active Directory and Entra ID assessments can uncover privilege escalation paths, weak password policies, stale accounts, misconfigured groups and lateral movement opportunities. Addressing these issues helps reduce the risk of unauthorised access and supports stronger NIS2 compliance.

Testing people, processes and response

NIS2 is not only about technology. People and processes also need to be tested.

Social engineering assessments help organisations understand how attackers could exploit employees, business processes or physical access. This may include phishing simulations, vishing, impersonation scenarios or physical security testing. The goal is not to blame users, but to identify where awareness, escalation routes or verification processes need improvement.

Red team exercises go further by testing prevention, detection and response capabilities against realistic attack scenarios. They can reveal whether security tools generate the right alerts, whether teams respond quickly and whether incident procedures work when pressure is high.

These exercises support NIS2 requirements around incident handling, crisis management and business continuity. They also help organisations improve resilience before a real incident occurs.

Supply chain security and third-party risk

Supply chain security is a major focus of NIS2. Organisations need to understand the cyber risks linked to suppliers, service providers, software platforms and third-party integrations.

Testing can help identify whether supplier-connected systems create unnecessary exposure. This may include insecure APIs, weak remote access controls, poor segmentation or excessive permissions.

Integrity360 can support organisations with targeted testing and assessments that help reduce third-party risk and strengthen supply chain assurance. This is particularly important for organisations that depend on outsourced services or interconnected digital platforms.

How often should organisations test for NIS2?

NIS2 compliance is not a one-off exercise. Cybersecurity risk changes whenever systems are updated, suppliers are added, applications are released, cloud environments are reconfigured or new attack techniques emerge.

For many organisations, annual testing is no longer enough. A stronger approach may include regular vulnerability assessments, annual penetration testing of critical systems, testing after major changes, periodic cloud and identity reviews, social engineering exercises and red team testing for high-risk environments.

Integrity360’s Penetration Testing as a Service gives organisations a flexible way to plan and manage testing throughout the year, helping maintain assurance as environments change.

Why choose Integrity360 for NIS2 cybersecurity testing?

Integrity360 helps organisations identify risk, validate controls and strengthen compliance through a broad range of cybersecurity testing services.

Our specialists provide practical, business-focused reporting that supports technical remediation, board-level visibility, internal audit and wider NIS2 compliance activity. We also offer broader capabilities across governance, risk and compliance, managed detection and response, incident response, threat exposure management and cyber resilience.

That means organisations can work with one partner to assess risk, prioritise action and improve their security posture. If your organisation needs to meet its NIS2 obligations, Integrity360 can help you test, improve and prove your cybersecurity resilience.

FAQs

What is cybersecurity testing for NIS2 compliance?

Cybersecurity testing for NIS2 compliance involves assessing systems, networks, applications, cloud environments, identities, users and processes to identify weaknesses and validate whether security controls are effective.

Does NIS2 require penetration testing?

NIS2 requires organisations to take appropriate and proportionate cybersecurity risk management measures. Penetration testing can help support this by identifying exploitable weaknesses and providing evidence that security controls are being tested.

How does penetration testing help with NIS2 compliance?

Penetration testing helps organisations identify security weaknesses, understand real-world attack paths, prioritise remediation and demonstrate proactive cyber risk management.

Is vulnerability scanning enough for NIS2 compliance?

Vulnerability scanning is useful, but it is not enough on its own. Penetration testing provides deeper insight by assessing whether weaknesses can be exploited and what impact they could have.

How often should organisations test for NIS2 compliance?

Testing frequency depends on risk, sector, systems, regulatory exposure and business change. Many organisations should combine annual penetration testing with regular vulnerability assessments, cloud reviews, identity assessments and testing after major changes.

Can Integrity360 help with NIS2 compliance?

Yes. Integrity360 helps organisations support NIS2 compliance through cybersecurity testing, penetration testing, vulnerability assessments, red team exercises, cloud security testing, identity assessments, social engineering, governance support, incident response and managed detection and response.