UK Strengthens Cyber Defences as Industry Booms

Businesses across the UK are being urged to strengthen their cyber defences as the government steps up efforts to protect the economy, critical infrastructure and public services from increasingly sophisticated cyber attacks driven by artificial intelligence.

Ministers have announced a new Cyber Resilience Pledge, designed to encourage organisations to improve their security measures and better prepare for a rapidly changing digital threat landscape. The initiative comes alongside fresh figures showing the UK cyber security sector continues to grow at pace, with annual revenue increasing by 11% to £14.7bn and the number of cyber firms rising by 20% to 2,603.

The government says the pledge will form a key part of a broader national effort to improve cyber resilience as AI technologies make it easier for criminals to launch attacks at unprecedented speed and scale. Launching later this year, the Cyber Resilience Pledge will ask organisations to commit to three practical measures aimed at strengthening security and reducing risk. These include making cyber security a board-level responsibility, signing up to the National Cyber Security Centre’s free Early Warning Service, and requiring Cyber Essentials certification across supply chains.

Cyber Essentials, the UK government-backed security standard, is designed to help organisations guard against the most common cyber threats and improve baseline protection across industries. Ministers have already written directly to some of the country’s leading companies encouraging them to sign the pledge, while businesses across the wider economy are being urged to review the requirements and commit to stronger cyber practices. The government is supporting the initiative with £90m in funding aimed at improving cyber resilience across the UK economy. The latest push comes as the Cyber Security and Resilience Bill continues its passage through Parliament following the King’s Speech. The legislation is expected to strengthen protections for critical national infrastructure and reduce the risk of disruption to essential services such as healthcare, energy, water and data centres.

Officials say the bill demonstrates the government’s long-term commitment to strengthening the UK’s digital defences while supporting economic growth and technological innovation. At the same time, the government is highlighting the continued expansion of Britain’s cyber security sector, which is increasingly seen as both a strategic national asset and a major driver of economic growth. According to newly published figures, the sector created around 2,300 jobs over the past year alone, reflecting growing demand for cyber expertise as businesses and public services invest heavily in digital protection. The growth also reinforces the UK’s position as a global leader in cyber security, particularly as organisations worldwide seek stronger defences against sophisticated AI-enabled threats.

Ministers warned that advances in AI are dramatically changing the nature of cyber crime. New AI models are lowering the barriers for attackers, enabling cyber criminals to identify vulnerabilities, automate attacks and target organisations more efficiently than ever before. Recent figures show that 43% of UK businesses experienced a cyber breach or attack in the last year, underlining the scale of the challenge facing organisations of all sizes. The government says traditional cyber security measures alone are no longer sufficient to tackle emerging threats, particularly as AI continues to evolve rapidly.

Research carried out by the AI Security Institute examining advanced frontier AI models, including Mythos and GPT 5.5, has highlighted concerns about the growing capability of AI systems and their potential misuse in cyber attacks.

Ministers argue that businesses must move beyond reactive security strategies and instead invest in smarter, more resilient systems capable of limiting damage and adapting to increasingly advanced threats. Rather than simply responding after breaches occur, organisations are being encouraged to build systems designed to anticipate attacks, minimise disruption and recover quickly when incidents happen.

The UK government insists it is taking a leading role internationally in responding to these challenges. It points to the creation of the AI Security Institute as evidence of the country’s ambition to become a world leader in understanding and assessing frontier AI systems. The institute has been tasked with independently evaluating the capabilities and risks associated with advanced AI technologies.

Meanwhile, the National Cyber Security Centre, part of GCHQ, continues to provide practical guidance and support for businesses, public sector organisations and individuals seeking to improve online security. Officials say collaboration between government, industry and technology experts will be essential if the UK is to remain resilient against the next generation of cyber threats.

For businesses, the message from government is clear: cyber resilience can no longer be treated as a technical afterthought. As AI accelerates the pace and complexity of attacks, organisations must embed cyber security into leadership, operations and long-term planning. With digital threats continuing to evolve, ministers believe the Cyber Resilience Pledge could become an important step towards building a safer and more secure digital economy for the future.

Cyber Security Minister Baroness Lloyd said: “Cyber security is now fundamental to economic growth, job creation and the resilience of the services people rely on every day. The UK has a world‑class cyber sector that is creating skilled jobs and protecting our economy – and government is doing more by investing in its own defences, legislating to require more of essential services and setting clear national standards. As threats evolve, businesses of all sizes need to step up and take practical action now. The Cyber Resilience Pledge is a clear call for companies to strengthen their defences, protect their customers and play their part in keeping the UK secure and competitive.”