Guide

NIS2 Requirements and GDPR for Small Business

What the NIS2 requirements are, how they sit alongside GDPR, and which parts realistically reach a small business — including the supplier questions that arrive from customers inside the directive's scope.

By SecureBusinessHub Editorial, International cybersecurity desk — 2026-02-25 · 10 min read

The hidden cost of non-compliance

GDPR fines can reach 4% of annual global turnover, which is significant. But for small businesses, the reputational damage often hits harder. Customers who find out their data was exposed often don't come back. Depending on your industry, you can end up on untrusted vendor lists that are difficult to get off.

1. Does GDPR apply to you?

The most common misconception is that GDPR only covers EU-based companies. It doesn't. If your business collects data from, sells to, or monitors the behavior of people in GDPR-covered jurisdictions, the regulation applies to you. That includes a consultant in New York or a SaaS startup in Sydney. If you have European users, you're in scope.

The underlying principle is straightforward: individuals own their personal data, and you're borrowing it for a specific, disclosed purpose.

2. The core principles of data protection

For your operations to be compliant, they need to reflect these seven principles:

Lawfulness, fairness, and transparency: Be honest about what you're doing with the data.
Purpose limitation: Only collect data for the specific reason you stated.
Data minimization: Don't collect data "just in case." Take only what you need.
Accuracy: Keep the data you hold up to date.
Storage limitation: Delete data once you no longer need it.
Integrity and confidentiality: Keep the data secure.
Accountability: Be able to prove you're doing all of the above.

3. Actionable steps for SMBs

Compliance doesn't require a legal department. It requires a systematic approach:

A. Conduct a data audit

Map every piece of personal data you collect. Where does it come from? Who has access to it? Where is it stored? Understanding your data flow is the first step toward securing it.

B. Update your privacy policy

Write your privacy policy in plain language. It should explain what data you collect, why you hold it, and how people can request deletion. (See our Privacy Protocol for an example).

C. Managing third-party risks

Most SMBs use third-party tools like CRM systems, email platforms, and cloud storage. Under GDPR, you're responsible for ensuring those providers are also compliant. Always check for a Data Processing Agreement when you sign up for any service that will handle customer data.

4. Rights of the data subject

GDPR gives individuals real rights, including the right to access a copy of their data and the right to erasure (the "right to be forgotten"). You need a process to handle these requests within 30 days.

5. The 72-hour rule

If you experience a breach that puts individuals at risk, you're legally required to notify the relevant supervisory authority within 72 hours of finding out. That's why having an incident response plan isn't optional.

NIS2 requirements: the second regime to know about

Data protection law is not the only European regime a business gets asked about. The NIS2 directive sets baseline cybersecurity and incident-reporting obligations for organisations in a defined list of sectors, and it is the source of most of the security questions that now arrive attached to contracts. The two regimes cover different ground: data protection law governs personal data and what people can ask you to do with it, while the NIS2 requirements govern the security and resilience of network and information systems, whether or not personal data is involved. A single incident can engage both, on separate clocks, to separate authorities.

The directive applies to organisations in its listed sectors that are at least medium-sized, meaning broadly fifty or more employees or turnover and balance sheet above ten million euros. That size rule puts most small businesses outside its direct scope, and the honest answer for a ten-person company is usually that the directive does not regulate it. What the size rule does not do is keep the requirements away, because one of them is supply chain security: organisations inside scope are expected to consider the security practices of their direct suppliers, and the way that expectation shows up in the world is as a questionnaire in your inbox.

The measures the directive names are a reasonable checklist for any business, which is why they are worth knowing even when they do not apply to you directly. They cover risk analysis and written security policies, incident handling, business continuity and backups, supply chain security, secure development and vulnerability handling, basic cyber hygiene and training including for management, encryption and access control policies, and multi-factor authentication. Reporting is staged and fast for the organisations it covers: an early warning within twenty-four hours of becoming aware of a significant incident, a fuller notification within seventy-two hours, and a final report within one month.

Because the directive is national law in each member state rather than a single rulebook, the details of scope, thresholds and reporting differ by country. For a fuller explanation of the instrument itself, see our guide to what the NIS2 directive is, and for the supplier side of the supply chain obligation, our walkthrough of vendor risk assessment. The reporting clocks that run alongside data protection deadlines are covered in data breach notification requirements.

Frequently asked questions

Does NIS2 apply to a small business?

NIS2 generally applies to organisations in its listed sectors that are at least medium-sized, meaning broadly fifty or more employees or turnover and balance sheet total above ten million euros. Most smaller businesses fall outside its direct scope, unless a member state has specifically designated them or they sit in one of the size-independent categories such as DNS service providers or trust service providers. Being outside scope does not stop the directive reaching you through customers who are inside it.

What is the difference between GDPR and NIS2?

GDPR governs personal data: what you may collect, why you may hold it, and what rights people have over it. NIS2 governs the security and resilience of network and information systems in specific sectors, whether or not personal data is involved. One incident can engage both regimes at once, on separate reporting clocks and to separate authorities.

How long do you have to report a data breach?

Under the European model, a personal data breach is reported to the supervisory authority without undue delay and, where feasible, within seventy-two hours of becoming aware of it, and affected individuals are told without undue delay where the risk to them is high. Organisations in scope of NIS2 carry a separate obligation: an early warning within twenty-four hours, a fuller notification within seventy-two hours, and a final report within one month.

Does a small business need a data protection officer?

Under GDPR a data protection officer is required where the organisation is a public authority, where its core activities involve regular and systematic monitoring of people on a large scale, or where its core activities involve large-scale processing of special category or criminal offence data. Most small businesses meet none of those tests and are not required to appoint one, though naming someone internally as the contact for privacy questions is worth doing regardless.

What should a small business do when a client's security questionnaire asks about NIS2?

Answer what you actually do rather than what you think the client wants to hear. The questions usually cover written security policies, incident handling and how fast you would notify them, multi-factor authentication, access control when staff join and leave, backup and recovery arrangements, and which of your own subprocessors touch their data. Gaps are common, and disclosing one with a date for closing it lands far better than an answer that does not survive the follow-up question.

Do these rules reach a business based outside the EU?

They can. GDPR reaches organisations outside the EU that offer goods or services to people in the EU or monitor their behaviour, and other regions have their own regimes with their own triggers. NIS2 obligations follow the sectors and the member states that transpose it, but its supply chain expectations travel through contracts, which is how they reach suppliers anywhere in the world.