Understanding NIS-2: Elevated Cybersecurity for European Businesses

The NIS-2 Directive, which entered into force on 16 January 2023, is designed to enhance cybersecurity across the European Union. It replaces the original NIS Directive (NIS1) with a broader scope, clearer rules, and stronger supervision tools. This expansion means that many more entities, previously unaffected, now fall under its purview, categorised as either 'essential' or 'important'. These categories encompass a wide range of sectors, including energy, transport, healthcare, digital infrastructure, public administration, and even critical manufacturing, postal services, and waste management.

The directive mandates that these entities implement appropriate and proportional technical, operational, and organisational measures to manage risks to their network and information systems. This includes a strong emphasis on business continuity, incident handling, and supply chain security. For instance, organisations must establish robust incident response and reporting processes, with strict deadlines for notifying national authorities: an initial warning within 24 hours, a detailed report within 72 hours, and a final remediation report within one month. This multi-stage reporting process underscores the need for swift detection, analysis, and recovery capabilities.

Beyond technical measures, NIS-2 also introduces corporate accountability, making senior management directly responsible for cybersecurity compliance. This means that cybersecurity is no longer solely an IT department concern but a board-level imperative, with potential personal liability for executives in cases of non-compliance. The directive's comprehensive nature aims to create a more resilient digital landscape across Europe, but it places significant demands on organisations to re-evaluate and strengthen their entire cybersecurity posture, with disaster recovery being a critical component.

The Critical Role of Disaster Recovery in NIS-2 Compliance

Disaster recovery (DR) is not merely a best practice under NIS-2, but an explicit and fundamental requirement for ensuring business continuity and effective incident response. The directive mandates that organisations have plans in place to maintain operations during and after a security incident, which directly translates to having robust backup and disaster recovery systems. This includes the ability to restore the availability and access to critical data and systems in a timely manner following physical or technical incidents.

NIS-2's focus on resilience means that organisations must be able to recover quickly and effectively from various disruptions, whether caused by cyber-attacks, human error, or system failures. A well-defined and regularly tested DR plan minimises downtime, reduces financial losses, and, crucially, helps meet the stringent incident reporting deadlines. Without a swift recovery capability, organisations risk prolonged service disruption, which can lead to severe operational and financial consequences, as well as regulatory penalties.

Furthermore, DR plays a vital role in addressing NIS-2's risk management requirements. By implementing robust backup and recovery solutions, organisations actively mitigate the risks associated with data loss and system unavailability. This proactive approach is essential for demonstrating compliance during audits and inspections, which national competent authorities are actively conducting as of 2026. The integration of DR into an organisation's overall cybersecurity strategy is therefore non-negotiable for any entity falling under the NIS-2 Directive.

Key Disaster Recovery Requirements Under NIS-2

To achieve NIS-2 compliance, disaster recovery strategies must incorporate several key technical and organisational measures. At its core, NIS-2 requires organisations to implement robust security measures to minimise cyber risks, including incident management, stronger supply chain security, enhanced network security, better access control, and encryption. For disaster recovery specifically, this translates into:

• Comprehensive Backup Management: Regular and secure backups of critical data and systems are essential. This includes defining clear backup schedules, ensuring data integrity, and verifying the recoverability of backups. The backups must be up-to-date to ensure business continuity.
• Effective Restoration Capabilities: Beyond just backing up data, organisations must have detailed plans and procedures for restoring systems and data quickly and effectively. This involves defining Recovery Time Objectives (RTOs) and Recovery Point Objectives (RPOs) for critical functions and regularly testing these restoration processes.
• Incident Handling Framework: A structured incident response plan is required to detect, manage, and recover from security breaches. This framework must integrate DR processes to ensure that recovery actions are coordinated and efficient during a crisis.
• Encryption and Access Controls: Sensitive data, both at rest and in transit, must be encrypted to prevent unauthorised access. Strong access controls, including multi-factor authentication (MFA) and Role-Based Access Control (RBAC), are essential to protect backup systems and data from unauthorised access.
• Regular Testing and Auditing: DR plans must be regularly reviewed, tested through drills and simulations, and updated to reflect changes in organisational structure, technology, and threats. Comprehensive documentation of risk assessments, policies, and security controls is also required for audit readiness.

These measures collectively ensure that an organisation can withstand and recover from cyber incidents, thereby upholding its obligations under NIS-2 and safeguarding its operations and data.

Evaluating Cloud Storage Options for NIS-2 Disaster Recovery

When selecting a cloud storage solution for NIS-2 compliant disaster recovery, European companies face a complex landscape of options, each with distinct advantages and disadvantages regarding compliance, cost, and control. The choice significantly impacts an organisation's ability to meet NIS-2's stringent requirements for data resilience, sovereignty, and supply chain security. Below is a comparison of common cloud storage approaches:

While on-premise solutions offer direct control, they come with significant capital expenditure, maintenance overheads, and scalability limitations. Hyperscalers provide scalability and advanced features, but their US jurisdiction and often complex, unpredictable egress fees pose substantial challenges for NIS-2 compliance and cost management, especially during a disaster recovery event where large volumes of data need to be retrieved. This makes sovereign EU cloud providers a compelling option for European companies.

Addressing Data Sovereignty and Supply Chain Risks in DR

A critical aspect of NIS-2 compliance, particularly for disaster recovery, revolves around data sovereignty and the security of the supply chain. The directive explicitly mandates that organisations assess, monitor, and manage cyber risks across their entire value chain, including direct suppliers and service providers. This means that the choice of a cloud provider for DR is not just a technical decision but a strategic one with significant legal and compliance implications.

The CLOUD Act and its Implications for EU Data

The US CLOUD Act (Clarifying Lawful Overseas Use of Data Act) is a significant concern for European companies utilising US-based cloud providers. Passed in 2018, this US federal law allows US law enforcement to compel American companies to provide access to data stored abroad, even if that data belongs to non-US persons and resides in data centres located within the European Union. This creates a direct conflict with the GDPR, which requires an adequate level of protection for personal data transferred outside the EU.

Even if a US hyperscaler offers data residency in EU regions, the fact that the parent company is subject to US jurisdiction means that data could still be accessed by US authorities without judicial review in the EU, and often without the data subject's knowledge or recourse. This undermines the principle of digital sovereignty and poses a substantial risk for NIS-2 compliance, especially for sensitive data. For European companies, ensuring that their DR solution is not exposed to such extraterritorial access is paramount for maintaining legal certainty and protecting critical assets.

Supply Chain Security under NIS-2

NIS-2 requires organisations to establish a supply chain security policy, including formal rules governing relationships with all direct suppliers of products and services. This policy must cover supplier selection criteria, evaluation of their cybersecurity practices, and contractual commitments regarding security standards and incident notification. Choosing a cloud provider with transparent, EU-only operations simplifies this complex requirement, as it reduces the number of jurisdictions and third-party dependencies that need to be scrutinised for potential vulnerabilities and compliance gaps. A sovereign EU cloud provider, by design, offers a more straightforward path to meeting these stringent supply chain security obligations.

Impossible Cloud: The Sovereign S3-Compatible Solution for NIS-2 DR

For European companies seeking the best NIS-2 disaster recovery solution, Impossible Cloud offers a compelling and compliant alternative to traditional and hyperscaler approaches. Built on a decentralised architecture and operated exclusively in certified European data centres (Germany, Netherlands, UK, Denmark, Poland), Impossible Cloud is sovereign by design, ensuring that your data remains under EU/UK jurisdiction and is free from extraterritorial access risks like the CLOUD Act. This foundational commitment to data sovereignty is critical for meeting NIS-2's stringent requirements.

Impossible Cloud provides S3-compatible object storage, making it a seamless replacement for existing backup and disaster recovery workflows. This full S3 API compatibility means that organisations can integrate their current applications, scripts, and tools (such as Veeam, Acronis, MSP360, Nakivo, and Veritas) without requiring costly code rewrites or extensive re-architecture. This ease of integration accelerates the path to NIS-2 compliance, allowing businesses to leverage familiar tools while benefiting from a sovereign cloud infrastructure.

Beyond sovereignty and compatibility, Impossible Cloud addresses key NIS-2 technical requirements:

• Predictable Costs: Unlike hyperscalers, Impossible Cloud operates with transparent, predictable pricing, featuring no egress fees, no API call costs, and no minimum storage duration. This eliminates the unpredictable charges that can escalate dramatically during disaster recovery events, ensuring cost certainty for budgeting and operations.
• Enhanced Security: Multi-layer encryption (in transit and at rest), Immutable Storage (Object Lock) for ransomware protection, IAM with MFA/RBAC, and SAML/OIDC support provide robust security measures aligned with NIS-2's risk management mandates.
• High Resilience: With 99.999999999% (11 nines) durability and an Always-Hot object storage model, all data is immediately accessible without tier-restore delays. This architecture eliminates single points of failure and ensures strong read/write consistency, crucial for rapid recovery during a disaster.

By choosing Impossible Cloud, European companies can build a NIS-2 compliant disaster recovery strategy that is not only robust and resilient but also sovereign, cost-effective, and easy to implement. Learn more about our S3-compatible storage solutions on our S3 Object Storage page.

Building a Resilient NIS-2 Compliant DR Strategy with Impossible Cloud

Implementing a NIS-2 compliant disaster recovery strategy with Impossible Cloud involves a structured approach that uses its inherent strengths in sovereignty, security, and S3 compatibility. The first step is to conduct a thorough Business Impact Analysis (BIA) to identify critical systems and data, define acceptable RTOs and RPOs, and understand potential impacts of disruption. This assessment forms the foundation for tailoring your DR plan to specific NIS-2 requirements.

Next, migrate your backup and archive data to Impossible Cloud's S3-compatible object storage. The seamless S3 integration allows for a straightforward transition, often without needing to reconfigure existing backup software or processes. For instance, organisations using Veeam can easily point their backup repositories to Impossible Cloud, ensuring that their critical data is stored securely in EU data centres. This not only satisfies data residency requirements but also provides the Immutable Storage (Object Lock) feature, offering crucial protection against ransomware attacks by preventing data alteration or deletion for a specified period.

Crucially, regularly test your disaster recovery plan. NIS-2 mandates that DR plans are reviewed and tested through drills and simulations to ensure effectiveness. With Impossible Cloud's Always-Hot architecture and no egress fees, testing recovery scenarios becomes both practical and cost-efficient. You can retrieve large volumes of data for testing purposes without incurring unexpected charges, allowing for more frequent and comprehensive validation of your DR capabilities. This continuous validation is key to demonstrating ongoing compliance and maintaining a high level of operational resilience.

Finally, leverage Impossible Cloud's transparent pricing and robust security features to simplify your NIS-2 compliance journey. The absence of egress fees ensures that recovery costs are predictable, while ISO 27001 and SOC 2 Type II certifications provide a strong foundation for meeting the directive's security and risk management obligations. By partnering with a European-based provider like Impossible Cloud, organisations gain a trusted ally in navigating the complexities of NIS-2, ensuring full control and zero surprises. Explore our customer success stories to see how other European institutions are achieving digital sovereignty.