Key takeaways:

• Treat cyber resilience as a business priority, not just an IT issue.

• Identify your most critical systems, data and suppliers so you know what needs the strongest protection as the business scales.

• Test your incident response plan before you need it so leadership teams can make faster, clearer decisions under pressure.

• Put clear guidance around AI use so employees understand which tools are approved and what information should never be shared.

What cyber resilience really means for growing businesses

Cyber resilience is about more than preventing attacks. It is the ability of an organisation to prepare for, absorb, recover from and adapt to cyber threats while keeping critical operations running.

For scaling businesses, this means making resilience part of growth from the start. As a company introduces new systems, suppliers, tools and processes, its exposure to cyber risk changes. If security is treated as a separate step or an afterthought, gaps can quickly appear.

In practice, building resilience means evaluating cyber risk before onboarding a new vendor or platform, including security requirements in procurement and contracts, setting clear service expectations and involving IT or risk teams when new processes are introduced.

The key point for founders and leaders is that cyber resilience needs to evolve with the business. What worked at an earlier stage may not be enough as the organisation grows, becomes more complex and becomes more visible to attackers.

Why cyber risk is a leadership issue, not just an IT issue

Almost every business now depends on technology and data to operate. That means a cyber incident can quickly become a commercial, legal and reputational issue, not just a technical one.

Technical teams play a critical role in containing an incident, restoring systems and recovering business-critical processes. But some of the most important decisions in the first few hours sit with the leadership team.

Those decisions can include who to communicate with, when to provide updates, how much information to share, whether to take systems offline and how the business would respond if a ransom demand was involved. Each choice can have operational, legal and reputational consequences.

This is why cyber resilience needs clear leadership ownership. Businesses that have already agreed responsibilities, escalation routes and decision-making principles are better placed to respond calmly when pressure is high.

Start with strong foundations and your “crown jewels”

Strong cyber hygiene provides the foundation for cyber resilience. This includes system patching, access controls, reliable backups and clear visibility of the systems, data and suppliers the business relies on.

For UK businesses, Cyber Essentials can also offer a practical starting point. The certification, backed by the National Cyber Security Centre, sets out baseline controls that can help organisations understand what good cyber hygiene looks like.

Once those foundations are in place, leaders need to understand their “crown jewels”. These are the systems, data, suppliers and processes that would cause the most damage if they became unavailable, were compromised or were tampered with.

A useful way to assess this is through the CIA triad: confidentiality, integrity and availability. In simple terms, this means understanding who should have access to information, how the business knows its data is accurate and what happens if critical systems cannot be accessed.

Supply chains are also an important part of this picture. Third-party and fourth-party risks can affect a business’s resilience, particularly if a key supplier or subcontractor is disrupted. Mapping these dependencies helps leaders understand where the organisation may be exposed and where protection should be prioritised.

Test your plan before pressure hits

Having an incident response plan is important, but testing it is where many organisations learn the most. Cyber simulations give leadership teams a safe environment to understand how decisions would be made during a live incident.

A common challenge is the tension between speed and certainty. In a real incident, leaders may only have partial information, but still need to make decisions that affect customers, employees, suppliers and the future of the business.

Simulations often reveal gaps in authority, sign-off processes and communication plans. They can also expose areas that have not been discussed in advance, such as the organisation’s position on ransom payments, when to go public or whether systems should be taken offline.

For scaling businesses, these exercises do not need to be overly complex. Even a simple scenario can help identify where responsibilities are unclear and where teams may need more guidance. The value is in finding those gaps before a real incident occurs.

AI, communication and protecting trust during an incident

AI is changing the cyber threat landscape. It can help businesses improve detection and response, but it is also making attacks cheaper, faster, more sophisticated and easier to scale.

This matters for growing businesses because attackers no longer need the same level of resource to target smaller organisations. AI can reduce the cost of launching attacks and make tactics such as phishing, impersonation and ransomware more convincing.

At the same time, businesses need to manage risks inside the organisation. One growing concern is “shadow AI”, where employees use unauthorised tools and input company information, client data, code or sensitive material without proper oversight.

Clear guidance is essential. Employees need to know which tools are approved, what information should never be shared and how AI should be used safely. Training, AI literacy and governance need to work together so that employees understand both the opportunity and the risk.

Communication is just as important when an incident occurs. One of the biggest mistakes businesses can make is communicating too quickly before the facts are confirmed.

A cyber incident often unfolds over time. The facts may change as forensic teams investigate, and a statement made too early may need to be corrected later. This can damage trust at the moment when stakeholders are looking for control and clarity.

For a business facing a potential incident, the first move should be to assemble a small crisis team quickly, including IT, security, legal, operations and communications. The organisation should treat the issue as a potential security incident, begin containment and investigation, involve legal counsel and use short, factual communications while the picture is still developing.

A final thought for scaling leaders

Cyber resilience is not about eliminating every risk. It is about helping a business prepare, respond and recover in a way that protects operations, customers and trust.

The organisations that manage incidents most effectively are often those that have already done the groundwork. They understand their critical systems, know where supplier risk sits, have tested their response plans and have clear principles for communication.

For scale-ups, the message is clear: cyber resilience should grow with the business. Building it early can help leaders move forward with more confidence, knowing they are better prepared for the risks that come with growth.