Artificial intelligence is changing how businesses operate, but it is also changing how cybercriminals attack. A new warning from the UK’s National Cyber Security Centre highlights why organisations can no longer afford to treat cybersecurity as an afterthought.
Artificial intelligence is creating new opportunities for businesses, from automating everyday tasks to improving decision-making and customer experiences. But the same technology is also giving cybercriminals more powerful ways to identify weaknesses, target organisations and carry out attacks.
A warning issued by the UK’s National Cyber Security Centre (NCSC) on 3 November 2026 has brought this challenge into sharper focus. Its latest assessment says it is highly likely that AI-powered malware will be used in a ransomware attack against the UK’s critical national infrastructure by 2028.
The warning covers essential services and facilities such as energy, transport, healthcare, finance and food supply. It is not a prediction that a specific attack will happen on a particular date. Instead, it highlights how quickly the cyber threat landscape could develop if organisations fail to strengthen their defences.
For businesses, the message is clear: cybersecurity needs to become part of everyday business strategy, not something addressed only after an incident.
How Is AI Changing the Cybersecurity Threat?
Traditional cyberattacks can require considerable time and technical knowledge. AI is beginning to reduce some of those barriers.
Cybercriminals can potentially use AI tools to research organisations, identify weaknesses in digital systems, create convincing phishing messages and assist in developing malicious code. Tasks that once required more manual effort may become faster and easier to scale.
This does not mean AI independently carries out every cyberattack. Human attackers remain an important part of the threat. However, AI can help them work more efficiently, target more organisations and adapt their methods.
The NCSC has also warned that hostile state actors, including Russia and China, are likely to use AI capabilities more routinely in cyber operations by 2028.
The concern is not simply that attacks will become more sophisticated. It is that weaknesses which organisations have ignored for years could become much easier to discover and exploit.
Why Critical Infrastructure Is at Risk
Critical infrastructure supports the services people and businesses depend on every day. Power stations keep electricity flowing, hospitals provide essential healthcare, airports and transport networks connect communities, while financial systems support commercial activity.
Many of these environments rely on a combination of modern digital platforms and older technology that may be difficult or expensive to replace.
This creates a complex security challenge. A weakness in one connected system could potentially affect wider operations, especially where organisations depend on external suppliers, shared networks or remotely managed technology.
The consequences of a successful attack could extend far beyond lost data. Businesses may face operational shutdowns, interrupted services, financial losses, reputational damage and difficulties meeting customer commitments.
Recent cyber incidents affecting physical systems, including supermarket refrigeration equipment in Europe, demonstrate why digital security is increasingly connected to real-world business continuity.
The Bigger Problem: Old Security Weaknesses
One of the most important points in the NCSC warning is that AI does not necessarily need to invent completely new attack methods.
Many organisations still operate with outdated software, poorly managed access permissions, weak security practices and systems that are unnecessarily exposed to the internet.
These weaknesses are already familiar to cybersecurity professionals. The difference is that AI could help attackers find and exploit them at greater speed and scale.
This creates a difficult situation for businesses that delay software updates, overlook security reviews or depend on technology that no longer receives proper support.
The risk is particularly relevant to smaller organisations. Limited budgets and internal IT resources can make it harder to maintain security standards, even when the business depends heavily on digital systems.
What Could an AI-Powered Ransomware Attack Mean for Businesses?
Ransomware is designed to disrupt access to systems or data, often by encrypting files and demanding payment. In some cases, attackers may also steal sensitive information and threaten to publish it.
AI could make parts of this process more efficient, from identifying potential targets to supporting the development of malicious tools.
For a business, the impact can be serious. Employees may lose access to essential systems, customer services may stop, financial information could be exposed and suppliers may be unable to complete their work.
Even organisations that are not directly targeted can experience disruption when a supplier, software provider or business partner is compromised.
This is why cybersecurity should not be viewed as an IT department issue alone. It is a business risk that can affect operations, finances, customer trust and long-term growth.
What Should UK Businesses Do Now?
The NCSC’s warning is a reminder that organisations need to strengthen the foundations of their cybersecurity rather than relying on a single security product.
1. Review existing technology
Businesses should identify outdated software, unsupported systems and unnecessary internet-facing services. Regular technology reviews can help uncover weaknesses before they become serious problems.
2. Strengthen access controls
Not every employee or supplier needs access to every business system. Multi-factor authentication, strong password practices and restricted user permissions can reduce the risk of unauthorised access.
3. Keep systems updated
Security patches should be applied promptly, particularly where vulnerabilities are known to be actively exploited. Businesses should also understand which systems and applications are no longer supported.
4. Prepare for disruption
A cybersecurity plan should explain how the organisation will respond if systems become unavailable. Secure backups, recovery procedures and clear responsibilities can help businesses restore operations more effectively.
5. Train employees
Staff awareness remains essential. Employees should know how to recognise suspicious emails, unexpected attachments, unusual login requests and social engineering attempts.
6. Review suppliers and external access
A business can be exposed through third-party software, contractors and service providers. Organisations should understand who has access to their systems and how external partners protect sensitive information.
7. Treat Cyber Essentials as a starting point
The NCSC has specifically encouraged organisations to use Cyber Essentials as a foundation for better security, while building additional protection according to their size, complexity and risk.
AI Can Also Strengthen Cyber Defence
There is another side to this development. Artificial intelligence is not only a tool for attackers.
When implemented responsibly, AI can help security teams analyse unusual activity, identify potential vulnerabilities, monitor systems and respond to emerging threats.
The challenge is ensuring that organisations have the right technology, expertise and oversight to use these capabilities effectively.
The UK Government has also announced investment in its defensive capabilities, including £60 million for the first phase of a national Cyber Shield and £70 million for a National Exposure and Real-Time Vulnerability Centre. These initiatives reflect the growing importance of identifying and addressing weaknesses across critical infrastructure and the wider economy.
For businesses, the opportunity is to use technology to improve resilience while maintaining appropriate human oversight and security controls.
Cybersecurity Is Now a Business Growth Decision
For years, some organisations have treated cybersecurity as an operational expense that can be postponed when budgets become tight. That approach is becoming increasingly difficult to justify.
As businesses move more operations online, adopt cloud platforms and introduce AI-powered tools, their digital exposure also grows. A security incident can affect customer confidence, commercial relationships and the ability to operate.
The organisations that prepare early will be better placed to protect their data, maintain services and respond when something goes wrong.
AI will continue to create opportunities for businesses. But adopting new technology without understanding its risks can leave organisations exposed.
The real question is no longer whether AI will change cybersecurity. It is whether businesses are prepared to change their approach to security before attackers take advantage of the gap.
The NCSC’s warning should not be treated as a reason to avoid AI. It should be a reason to adopt it more responsibly.
Businesses do not need to wait for a major cyber incident before reviewing their systems, improving employee awareness and investing in resilience. Stronger security begins with understanding existing weaknesses and taking practical steps to address them.
At Next Gen Business, we believe that digital growth and business resilience should move forward together. The future belongs to organisations that innovate with confidence while taking the security of their people, systems and customers seriously.
