NIS2 in Spain 2026: Actual Requirements, Affected Companies, and a Step-by-Step Guide to Compliance
As of October 2024, the European NIS2 Directive ceased to be a future regulation and became a binding requirement. By 2026, we’ll be at a very different stage of the process: we’ll be in the accountability phase.
However, many companies in Spain are still asking themselves the same question:“Does NIS2 really affect us?”In many cases,theanswer is yes—either directly or indirectly.
NIS2 isn't just intended for large corporations. It affects medium-sized businesses, technology providers, industrial companies, and organizations that are part of the supply chain in critical sectors.
We explain, in clear and practical terms, what NIS2 will actually require in 2026 and what Spanish companies need to review.
What is the NIS2 Directive, and how does it differ from NIS?
NIS2 (Network and Information Security Directive 2) is the European regulation that strengthens the common level of cybersecurity across member states.
Compared to the original NIS, NIS2:
- Expands the list of required sectors
- Tighten sanctions
- Establishes direct liability for the governing body
- Requires demonstrable technical and organizational measures
- Strengthen oversight and inspections
It’s no longer enough to simply “have security.” You have to be able to prove it with documentation.
Which companies are required to comply with NIS2 in Spain?
In 2026, NIS2 primarily affects the following sectors: energy, transportation, healthcare, water, digital infrastructure, financial services, IT providers, food, and public administration, among others.
In addition, many companies outside these sectors are indirectly affected because they are suppliers to regulated organizations.
If your company:
- It has more than 50 employees
- Its revenue exceeds 10 million euros
- It is a supplier to regulated companies
- You work in the public sector
NIS2 Requirements in 2026: What the Regulation Actually Requires
This is where many organizations fall short: they are familiar with the regulation, but not with its practical implications. NIS2 requires, among other measures:
1. Formal risk management
It's not enough to just have antivirus software. The company must:
- Identify critical assets.
- Assess vulnerabilities.
- Document risks.
- Develop mitigation plans.
The process must be formalized and documented.
2. Appropriate technical measures
Includes:
- Network and system security.
- Access management.
- Ransomware protection.
- Proven backup solutions.
- Incident monitoring.
It's not enough just to have the tools. You have to be able to prove that they work.
3. Staff training and awareness
One of the most important points.
The directive requires:
- Regular training.
- Human risk management.
- Awareness of social engineering.
In 2026, the human factor is one of the main areas of focus for inspections.
4. Incident Management and Mandatory Reporting
Affected companies must:
- Detect significant security incidents.
- Notify the competent authority within very tight deadlines.
- Have documented response procedures in place.
Failure to follow protocol may result in more severe penalties.
5. Responsibilities of the governing body
This is one of the most significant changes.
The address:
- It must approve the cybersecurity measures.
- He is responsible for its implementation.
- You may be held legally liable in the event of negligence.
Cybersecurity is no longer just a technical issue. It is a matter of corporate governance.
6. NIS2 Penalties in Spain
Fines can reach up to 10 million euros or up to 2% of global annual revenue
In addition to potential additional penalties and liabilities for directors. This is not a symbolic rule.
NIS2 Checklist: Is Your Company Prepared?
Ask yourself these questions:
- Do you work with the public sector or regulated companies?
- Could you demonstrate your security measures during an audit?
- Have you conducted penetration tests or real-world simulations?
- Do you regularly train your employees on phishing?
- Do you have a documented incident management plan?
If you can't answer clearly, there's probably a risk.
In environments where regulations directly impact operations, working with teams specializing in infrastructure, technical auditing, and human factors management enables a structured approach to NIS2.
Within theB2Groupecosystem, there are specialized divisions focused on advanced cybersecurity and regulatory compliance that complement SMARTGROUP’s operational technology layer.
NIS2 in 2026 is not a regulatory trend.
What questions might you have?
- Will NIS2 be mandatory in Spain by 2026? Yes, the directive must be transposed and implemented by then. The companies covered by it must comply with its requirements.
- Does NIS2 affect small and medium-sized enterprises? Yes, especially medium-sized companies or those operating in critical sectors.
- What is the difference between NIS and NIS2? NIS2 expands the scope of affected sectors, imposes stricter penalties, and strengthens management accountability.
- Is having antivirus software enough to comply with NIS2? No. NIS2 requires formal risk management, training, documentation, and demonstrable technical measures.
Why don't we talk and assess where your company stands?
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