How UK Businesses Can Strengthen Security for IoT Devices

Connected devices have quietly become the backbone of many UK businesses. Offices now rely on smart energy meters and automated lighting systems, while warehouses use connected sensors to track shipments and streamline operations. Even customer-facing services are increasingly powered by IoT, from digital kiosks to smart retail shelves. These tools save time, cut costs, and unlock new capabilities. But alongside this convenience comes a growing cybersecurity burden. Every connected device creates a potential entry point for cybercriminals, and as the number of devices increases, so does the level of risk.

Many attacks on UK organisations in recent years were linked to poorly secured IoT systems. A single unprotected device has the potential to expose sensitive data, interrupt daily operations or weaken an entire network. This makes it essential for companies to understand how to manage IoT securely before problems arise.

Understanding the Unique Risks of IoT

Unlike traditional computers or servers, IoT devices often have limited built-in security. Many are designed for functionality first and are not always updated regularly. Some rely on default passwords that are easy to guess, while others communicate over networks without encryption. Because these devices are always connected, cybercriminals can attempt to exploit them at any time.

Common risks include unauthorised access to devices, data interception and the possibility of attackers using IoT hardware as a gateway to move deeper into a company’s internal systems. In environments where dozens or even hundreds of IoT devices are deployed, keeping track of vulnerabilities becomes a challenge of its own. This makes early planning and structured security management critical.

Creating a Strong Security Foundation

The first step for any business is to identify every IoT device on its network. A complete inventory allows companies to understand what needs protection and where weaknesses might exist. Once the inventory is clear, businesses can apply essential security measures such as changing default passwords, enabling encryption wherever possible and restricting each device’s access to only what it needs to function.

Network segmentation is another powerful tool. By placing IoT devices on separate networks from core systems, companies reduce the risk of attackers moving laterally during a breach. Regular monitoring should also be in place to detect unusual activity early. Even simple signs like unexpected traffic can indicate an attempted intrusion.

Keeping Systems Updated and Managed

Updates and patches are vital to IoT security. Manufacturers often release fixes for vulnerabilities but many devices are not configured to install updates automatically. Businesses should create schedules to check for available updates and apply them promptly.

Using centralised IoT management platforms can make this process easier. These systems allow administrators to monitor device status, push updates and enforce company wide security policies from one location. This is particularly useful for organisations that operate across multiple sites or use a large number of connected devices.

Training Teams to Reduce Human Error

Technology is only one part of IoT security. The people using and managing these systems also play a key role. Employees should be trained to recognise potential risks, follow procedures for handling devices and report suspicious activity. Clear guidelines on how to use IoT devices safely can significantly reduce the chances of accidental exposure.

IT teams should also be familiar with best practices for IoT deployment and maintenance. This includes avoiding unverified devices, ensuring secure configurations and conducting regular audits. When staff members understand the importance of security, the overall protection of the organisation becomes much stronger.

Complying With UK Regulations

UK businesses must also ensure that their IoT practices align with national regulations. The Product Security and Telecommunications Infrastructure Act introduced new rules requiring stronger security standards for connected consumer devices. While some IoT systems used in businesses may fall outside this category, the principles still offer valuable guidance. The General Data Protection Regulation also applies whenever IoT devices collect or process personal data, making secure handling essential for compliance.

Following established standards such as those provided by the National Cyber Security Centre gives companies a clear framework for protecting their networks.

Building a Secure and Future Ready IoT Strategy

IoT will continue to grow as businesses seek automation and smarter ways of working. Preparing for this growth means building systems that are secure at every level. With a combination of strong technical controls, regular updates, staff training and compliance with regulations, UK businesses can enjoy the benefits of IoT without putting themselves at risk.

By investing in good security practices today, companies create a safer and more resilient foundation for tomorrow’s connected world.