In our latest article, we’re looking at network security, cyber threats, and solutions for UK businesses in 2025.
Networks are the unsung heroes of business, as without one, almost every business would be unable to operate. A network powers your internal and external communications, the apps your teams use daily, and so much more.
This means that any disruption to your network (especially a cyberattack) can result in costly downtime, lost data, eroded customer trust, and further spending on emergency IT support to get systems back online.
And as the threat landscape continues to evolve, network security has become one of the best means of defence for UK businesses against cybercrime.
What the cyber threat landscape looks like in the UK
The Cyber Security Breaches Survey for 2025 shows that the threat landscape for UK businesses is growing increasingly more complex. In 2025 alone, 43% of businesses and 30% of charities experienced a cyber security breach or attack (that’s over half a million businesses in 12 months).
Phishing via fraudulent websites or email is by far (at 85%) the most common method of attack and is also the most disruptive. Followed by people impersonating organisations or staff.
Attacks are also happening frequently, with 29% of businesses reporting that they happened once a week or more. And a concerning 16% of businesses that experienced an attack reported a negative outcome as a result.
The most common negative outcomes were defined as:
- Temporary loss of access to files or networks
- Web applications or online services taken down (or made slower)
- Software or systems corrupted or damaged
- Lost access to third-party services that are relied on
- Data altered, destroyed, or taken
- Devices damaged or corrupted
The data is clear – cyber-attacks and breaches are a present and ongoing threat to UK businesses, but what can be done about it?
How network security prevents downtime and data loss
Even short periods of downtime can lead to financial losses and incur unplanned costs, such as emergency IT support and overtime (which are needed to get services up and running again).
And what are the leading causes of downtime for UK businesses? Cybersecurity attacks, system failure, and data loss. This is why a robust network security strategy is essential to business continuity overall, not just keeping systems or data safe.
Network security measures such as firewalls, threat detection systems, and continuous monitoring can detect anomalies early and stop attacks in their tracks – before data is stolen or systems are compromised.
And, if an attack is successful, your incident response and recovery plan will ensure that data is restored quickly, minimising downtime and the resulting financial losses.
But what does an effective network security strategy look like?
The 7 pillars of an effective network security strategy
If protecting your network were as simple as implementing one or two tools, rates of cybercrime would drop significantly! Unfortunately, that is not the case.
To secure their network, businesses must establish multiple layers of defence that work together to protect data and systems – and provide the capability to restore them should the worst happen.
These layers of defence are your network security strategy and (in our experience) these are the seven things yours needs to be effective:
1. Firewalls and Perimeter Defence
Firewalls act as the first line of defence, filtering traffic and blocking unauthorised access. Advanced firewall solutions will inspect traffic down to the application level, so you can spot vulnerabilities and assess where the greatest risks to your network lie.
2. Endpoint Protection
Every laptop, mobile device, and server is a potential entry point for attackers. By implementing Endpoint Protection, you can monitor devices for suspicious behaviour and intervene before data is stolen or corrupted.
3. Identity and access management
Strong authentication is an important part of network security. Using Multi-Factor Authentication (MFA) and role-based access control will ensure that only authorised staff can access systems or view sensitive data.
4. Continuous monitoring and threat detection
Cyber threats evolve daily, so real-time visibility is key. Security Information and Event Management (SIEM) platforms aggregate logs and alert teams when an attempted attack occurs, so they can block the attack at its source before systems are compromised.
5. Data protection and encryption
Encrypted data cannot be stolen or lost, as it is protected both in transit and at rest. Even a simple case of misplaced data can lead to regulatory fines, so implementing data encryption will protect your data, your reputation, and ensure you don’t incur a hefty fine.
6. The human firewall
Phishing is by far the most popular form of cyber-attack. Phishing targets employees directly through channels like email, which means human error can easily lead to a system or data breach (it only takes one click after all). Regular training and phishing simulations can turn employees from your business’s biggest vulnerability to its strongest firewall.
7. Incident response and recovery
Every cyber security expert knows that even the best defences can be breached. A documented incident response plan and tested disaster recovery strategy are the safety net your business needs, should the worst happen. As they will ensure business continuity in the event of a successful attack or system failure.
How a network security managed service partner can help
Of course, establishing this is easier said than done. And in smaller businesses that may not have the in-house expertise or a dedicated IT team, it can seem almost impossible.
A trusted IT managed service provider can bridge this gap by providing enterprise-grade network security as a service. Allowing small and medium-sized businesses to stay secure without a big up-front investment (as the best services offer a subscription-based model).
Businesses that partner with a managed service provider benefit from:
- Cost-effective network security, without a big up-front investment.
- Access to certified professionals with compliance & security expertise (plus the latest in security software).
- Continuous monitoring and threat detection services, to ensure you stay secure even outside of office hours.
- A scalable network security solution that can evolve with you as your business grows.
Ultimately, a great partner will offer a network security solution that comes with predictable costs, enterprise-grade security, and true scalability.
If you’d like to discuss your network security posture or get cyber security advice from certified professionals, message us on contactus@phoenix47.co.uk.
