Protect Your Business with Smarter Network Security
Advanced network security designed for resilient, enterprise-grade protection.
The Challenge of Modern Network Security
Enterprise security teams must protect distributed users, devices and applications across offices, remote locations, cloud platforms and third-party environments while responding to increasingly sophisticated cyber threats.
Key challenges include:
- Defending against evolving cyber threats, ransomware and emerging vulnerabilities.
- Protecting users, devices and applications across office, remote, branch and third-party access.
- Securing hybrid and cloud environments spanning on-premises infrastructure, cloud services and SaaS platforms.
- Managing complex multi-vendor security platforms, policies and data sources.
- Maintaining estate-wide visibility to identify suspicious activity and security gaps.
- Supporting compliance, governance and consistent security controls.
- Balancing strong protection with operational efficiency and user experience.
These pressures can increase operational, compliance and incident-response risk.
Modern network security solutions address these challenges through layered protection, secure access, segmentation and consistent policy enforcement across users, devices, applications and infrastructure - helping organisations reduce exposure without creating unnecessary complexity.
Common Network Security Challenges — And How We Solve Them
Here are some of the most common network security challenges we help organisations overcome:
Protect Distributed Users & Devices
Challenge
Users and devices now connect from offices, branches, remote locations and cloud environments.
Solution
- Secure access, identity controls and threat protection help protect users wherever they connect.
Control Access to Critical Resources
Challenge
Broad or inconsistent access can expose sensitive systems, applications and data.
Solution
- Identity-aware access policies restrict resources to approved users, devices and services.
Limit Lateral Movement
Challenge
Flat networks can allow compromised users or devices to move between systems too easily.
Solution
- Segmentation and policy enforcement create controlled boundaries around critical users and workloads.
Secure Hybrid & Multi-Site Environments
Challenge
Distributed infrastructure can create inconsistent security policies and visibility gaps.
Solution
- Consistent security controls protect branches, campuses, data centres and cloud-connected environments.
Protect Against Evolving Threats
Challenge
New vulnerabilities, malware and attack techniques continually increase security risk.
Solution
- Modern firewalls, threat prevention and security intelligence help detect and block malicious activity.
Reduce Security Complexity
Challenge
Multiple security tools and policies can increase administrative overhead and inconsistency.
Solution
- Integrated platforms simplify policy, visibility and management across the security estate.
From architecture and design to implementation and optimisation, we deliver network security solutions that keep pace with emerging threats, simplify policy and compliance control, and enforce consistent protection across your infrastructure.
Find the Right Security Solution
Jump to the area most relevant to your security environment, from network protection and segmentation to secure access, analytics and centralised management.
Network Firewalls & Security Gateways
Protect users, applications and infrastructure with scalable firewalls and gateways.
Explore Firewalls & Gateways › 02Network Segmentation
Isolate users, devices and workloads to reduce lateral movement and protect critical systems.
Explore Network Segmentation › 03Zero Trust & Secure Access
Control access using identity, device posture and policy across users and applications.
Explore Zero Trust & Secure Access › 04Remote Connectivity & SASE
Secure remote users, branches and cloud access with integrated networking and security.
Explore Remote Connectivity & SASE ›Looking to improve security visibility, monitoring and administration?
Network Firewalls & Security Gateways
Network firewalls and security gateways remain a foundation component of modern cybersecurity architectures protecting users, applications, sites and data across enterprise, branch and data centre environments.
Traditional Firewall vs Next-Generation Firewall
| Traditional Firewall | Next-Generation Firewall |
|---|---|
| Traffic control: Filters traffic primarily by port, protocol and IP address | Traffic control: Identifies and controls traffic by application, user and risk |
| Inspection: Provides basic packet and connection inspection | Inspection: Uses deep packet inspection to analyse application traffic and content |
| Threat prevention: Offers limited protection against advanced malware and intrusion attempts | Threat prevention: Integrates intrusion prevention, malware detection and advanced threat protection |
| Security model: Focuses mainly on protecting the network perimeter | Security model: Applies identity-aware, application-aware and policy-driven security across the environment |
Firewall Deployment Models
| Deployment | Best For |
|---|---|
| Branch Firewalls | Remote offices and distributed locations requiring secure connectivity, consistent policy enforcement and centralised management |
| Campus & Enterprise Firewalls | Corporate networks and campus environments protecting users, devices, applications and internet access across multiple sites |
| Data Centre Firewalls | High-performance east-west and north-south security across data centre, private cloud and critical application environments |
Firewall Platforms
Designed to provide scalable security across branch, enterprise and data centre environments, with different platforms supporting a range of performance, management and operational requirements.
Best for: Enterprise security, secure connectivity and Cisco-centric environments requiring integrated protection across users, applications and infrastructure.
Best for: Organisations combining networking, security and Secure SD-WAN across branches, campuses, enterprise networks and data centres.
Best for: Enterprise, service provider and high-performance environments requiring advanced routing, segmentation and scalable network security.
Explore Firewall Solutions
Network Segmentation
Modern cyber threats increasingly target internal networks once perimeter defences have been bypassed. Network segmentation helps organisations isolate users, devices and applications, reducing lateral movement and improving security, resilience and compliance.
Traditional Networks vs Segmented Networks
| Traditional Networks | Segmented Networks |
|---|---|
| Architecture: Uses a largely flat network with limited separation between users, devices and systems | Architecture: Separates users, workloads and critical systems into defined security zones |
| Access: Restricts communication between defined users, devices, applications and security zones according to policy | Access: Applies policy-based access according to identity, device, role and risk |
| Threat movement: Makes it easier for attackers to move laterally after an initial compromise | Threat movement: Contains incidents by restricting communication between zones and critical resources |
| Risk exposure: Creates a larger attack surface and increases the potential impact of a breach | Risk exposure: Reduces cyber risk by limiting access paths and isolating sensitive systems |
Common Network Segmentation Approaches
| Approach | Best For |
|---|---|
| Department & User Segmentation | Corporate offices and campus environments separating teams, user groups and access privileges |
| Application Segmentation | Business-critical applications and workloads requiring controlled access and isolation from wider network traffic |
| Data Centre Segmentation | Protecting east-west traffic between servers, workloads, virtual environments and sensitive data |
| OT & Industrial Segmentation | Critical infrastructure and operational technology requiring separation from enterprise IT and external access |
| Guest & IoT Segmentation | BYOD, Internet of Things and unmanaged devices that require restricted access to trusted systems |
Why Network Segmentation Matters
Zero Trust & Secure Access
Modern security strategies verify users, devices and access requests before granting access to network resources. Zero Trust and secure access technologies help organisations apply identity, device context and least-privilege policies across campus, remote, cloud and distributed environments.
Traditional Security vs Zero Trust
| Traditional Security | Zero Trust |
|---|---|
| Trust model: Relies on implicit trust once users or devices are inside the network | Trust model: Continuously verifies users, devices and access requests |
| Access control: Grants access primarily based on network location | Access control: Grants access based on verified identity, context and policy |
| Permissions: Often provides broad access once a user is authenticated | Permissions: Applies least-privilege access to limit users to required resources |
| Security model: Focuses primarily on protecting the network perimeter | Security model: Centres security around users, devices, applications and individual resources |
Network Access Control & Policy Enforcement
Best for: Enterprise policy enforcement and device visibility across complex wired, wireless and remote access environments.
Best for: Multi-vendor network access control and secure onboarding across enterprise wired, wireless and device environments.
Best for: Integrated network access control within Fortinet environments requiring device visibility, access enforcement and automated response.
Best for: Cloud-managed enterprise networks requiring identity-based access policies and consistent control across wired and wireless users.
Zero Trust & Identity-Based Access
Best for: Enterprises requiring identity protection, multi-factor authentication and cloud-delivered Zero Trust access across users and applications.
Identity Protection
Best for: Fortinet environments requiring centralised authentication, endpoint security and integrated Zero Trust network access.
Identity & Authentication
Explore Zero Trust & Secure Access Technologies
Learn more about identity, network access control, Zero Trust Network Access and secure connectivity technologies.
Remote Connectivity & SASE
As organisations embrace hybrid working, cloud applications and distributed workforces, secure remote connectivity has become a critical component of modern cybersecurity. Secure Access Service Edge (SASE) combines networking and cloud-delivered security to provide secure access to applications, users and data regardless of location.
Traditional Remote Access vs SASE
| Traditional Remote Access | SASE |
|---|---|
| Security delivery: Relies on appliance-based security deployed at fixed network locations | Security delivery: Delivers networking and security services from the cloud |
| Access model: Provides access primarily at the network level | Access model: Applies identity and application-based access policies |
| Traffic routing: Often backhauls remote user traffic through the data centre | Traffic routing: Supports direct-to-cloud connectivity with security applied closer to users |
| Architecture: Typically relies on multiple separate networking and security platforms | Architecture: Converges networking and cloud-delivered security capabilities through an integrated architecture. |
SASE Platforms
Designed to combine networking and security services into a unified cloud-delivered platform, simplifying secure access for users, applications and distributed environments.
Best for: Enterprise secure access and cloud-delivered security across users, applications and distributed environments.
Best for: AI-driven secure access and cloud-native security across distributed enterprise networks and users.
Best for: Integrated networking and security architectures across branches, remote users, cloud applications and enterprises.
Best for: Cloud-native SASE for global organisations requiring networking and security delivered through a unified platform.
Secure Remote Access & Connectivity Platforms
Modern organisations require secure access to applications and services for employees, contractors and third-party users without exposing internal networks.
Best for: Cisco environments requiring secure remote access, endpoint connectivity, DNS-layer protection and cloud-delivered security.
Secure Remote Access
Best for: Fortinet environments requiring secure remote connectivity, endpoint visibility and Zero Trust application access.
Explore SASE & Secure Access Technologies
Learn more about SASE, SSE, ZTNA and secure remote access architectures for distributed users, sites and applications.
Enterprise Security Ecosystems
Enterprise security is most effective when networking, identity, policy enforcement and threat detection operate as an integrated ecosystem. We work with leading security vendors to help organisations build secure, scalable and centrally managed environments aligned to their existing infrastructure and operational requirements.
Cisco Security
Best for: Enterprises combining network security, identity, secure access and threat detection within a coordinated Cisco security architecture.
Explore- Cisco Secure Firewall
- Cisco Duo
- Cisco Secure Access
- Cisco Umbrella
- Cisco XDR
- Cisco Secure Network Analytics
Fortinet Security
Best for: Organisations standardising networking and security around an integrated Security Fabric with common policy, visibility and management.
Explore- FortiGate
- FortiNAC
- Fortinet Unified SASE
- FortiSIEM
- FortiSOAR
Juniper Connected Security
Best for: Juniper environments combining networking, AI-driven operations and consistent security policy across campus, branch and cloud.
Explore- Juniper SRX
- Juniper Secure Edge
- Juniper Security Director
- Juniper Mist Access Assurance
HPE Aruba Security
Best for: Enterprise wired and wireless environments requiring identity-first network access control and consistent policy enforcement.
Explore- Aruba ClearPass
- Identity-based network access
- Device profiling and policy enforcement
- Guest, contractor and BYOD access
Where Network Security Fits Within Your Wider Infrastructure Strategy
Enterprise security underpins every part of your IT infrastructure, from campus networks and remote users to hybrid cloud environments and data centre platforms. A well-designed security architecture integrates with networking, compute and cloud technologies to provide consistent protection across the organisation.
Campus Networking Solutions
Secure wired and wireless connectivity for users, devices and applications across enterprise campus environments.
Explore campus networking ›WAN & Edge Networking Solutions
Secure, resilient connectivity across branches, remote sites, cloud services and distributed enterprise environments.
Explore WAN & edge ›Data Centre Networking Solutions
High-performance switching, fabric and segmentation architectures for secure, resilient data centre connectivity.
Explore data centre networking ›Hybrid & Private Cloud Solutions
Secure private and hybrid cloud architectures combining workload mobility, infrastructure control and consistent policy.
Explore hybrid & private cloud ›Industrial & OT Networking Solutions
Resilient, segmented networking for industrial systems, operational technology and connected infrastructure environments.
Explore industrial & OT networking ›Cloud & Network Management Solutions
Centralised visibility, policy, automation and operational control across campus, WAN, data centre and cloud-connected networks.
Explore network management ›Supporting You at Every Stage
- Security Architecture & Design We design security architectures around your users, applications, sites and existing infrastructure, helping you choose the right approach before deployment begins.
- Firewall & Network Security Assessments We assess your existing security estate, configurations and controls to identify weaknesses, unnecessary complexity and practical opportunities to strengthen protection.
- Zero Trust & Network Segmentation Planning We help define how users, devices and applications should access the network, designing segmentation and Zero Trust policies around real operational requirements.
- Secure Access & SASE Deployment We design and deploy secure access and SASE solutions for distributed users, branches and cloud environments, integrating them with your wider network and security estate.
- Security Platform Integration We bring together firewalls, identity, access control, monitoring and security platforms so policies, visibility and operations work more effectively across the environment.
- Infrastructure Lifecycle & Technology Refresh Services We plan and deliver security infrastructure upgrades, migrations and refresh projects, helping you replace ageing platforms without unnecessary disruption.
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Network Security Solutions — FAQ
What is network security?
Network security protects users, devices, applications and data by controlling access, inspecting traffic and preventing malicious activity across the network.
It combines technologies such as firewalls, segmentation, Zero Trust access, network access control and SASE to protect campus, branch, data centre, remote and cloud-connected environments.
We can assess your existing security environment and help design the right combination of controls and platforms for your infrastructure. Book a consultation with our network security specialists.
What is the difference between a traditional firewall and a next-generation firewall?
Traditional firewalls primarily control traffic by IP address, port and connection state, while next-generation firewalls add application awareness, threat prevention and deeper traffic inspection.
Platforms such as Cisco Secure Firewall, FortiGate and Juniper SRX can combine firewall policy with intrusion prevention, application control, identity integration and advanced threat protection.
If you are replacing legacy firewalls or reviewing an existing estate, we can assess your requirements, compare suitable platforms and plan the migration. Speak to our security team about your firewall project.
What is network segmentation and why is it important?
Network segmentation separates users, devices and systems into controlled network zones so they can only communicate where access is required.
Segmentation reduces unnecessary access, limits lateral movement after a compromise and allows stronger controls around critical applications, servers, operational systems and sensitive data.
We help organisations assess existing network boundaries and design practical segmentation policies around real users, workloads and infrastructure. Book a consultation to discuss your segmentation requirements.
What is Zero Trust and how does it improve network security?
Zero Trust removes implicit trust based on network location and verifies users, devices and access requests before allowing access to applications or resources.
Identity, device posture and least-privilege policies can replace broad network access with more precise controls. Technologies such as Cisco Duo, Cisco Secure Access, Fortinet ZTNA and Juniper access assurance can form part of this approach.
We can help map Zero Trust principles to your existing network, identity and security infrastructure. Speak to us about planning a Zero Trust architecture.
What is SASE and how does it differ from SD-WAN?
SD-WAN focuses on how sites and applications connect across the WAN, while SASE combines networking with cloud-delivered security and secure user access.
SD-WAN provides application-aware routing, resilience and centralised WAN control. SASE extends this with capabilities such as Zero Trust access, secure web gateways, cloud security and firewall services.
Choosing between SD-WAN, SASE or a combined architecture depends on your sites, users, applications and existing security estate. Book a consultation and we can help define the right approach.
What is network access control?
Network access control identifies users and devices before allowing them onto the network and applies access policies based on identity, device type and security posture.
NAC can help organisations control employee, guest, contractor and unmanaged device access while restricting unsuitable or non-compliant devices from sensitive parts of the network.
We work with technologies including Cisco ISE and Aruba ClearPass to design access policies around your users, devices and infrastructure. Speak to our team about network access control.
How can I secure users and devices across multiple locations?
Distributed users and devices can be protected through a combination of identity controls, secure access, firewalling and consistent policy across office, branch, remote and cloud environments.
The right architecture depends on where users connect from, which applications they need and how much of your infrastructure is hosted on-premises or in the cloud.
We can assess your existing environment and design a security approach that provides consistent protection without creating unnecessary complexity. Book a consultation with our network security team.
Which network security platform is right for my organisation?
The right network security platform depends on your infrastructure, existing vendors, users, applications and security requirements.
Cisco, Fortinet, Juniper and HPE Aruba provide different strengths across firewalls, secure access, Zero Trust, network access control, SASE and segmentation. The best choice is usually the platform that fits the wider architecture rather than the longest feature list.
We work across these vendors and can assess your existing estate, compare suitable options and design the deployment around your operational requirements. Book a consultation with a network security specialist.
Review your network security strategy
Tell us about your current environment, security priorities and planned changes, and we’ll help identify the right architecture, platforms and next steps for your organisation.
