Overview

Cloud-based security, everywhere you are

Legacy security can't cope with today's threat landscape, and the impact of a breach can be huge. Safely and effortlessly connect your people, data and apps and meet regulatory demands with next-generation security.

76%

of CISOs at European enterprises report spending more of their IT budget on security

Forrester: European Cybersecurity Budgets, August, 2025

$4.4m

The global cost of a data breach - a 9% decrease over last year

IBM

€20m

The potential fine for a failure to comply with GDPR legislation

Source
Benefits

Benefits that empower progress

Security designed for how you work
Traditional security approaches aren't fit for a world where people and resources are outside the network perimeter. Cloud-based security protects against attacks, closes vulnerabilities, improves detection and limits damage if a breach happens. Zero trust continuously verifies users and makes it easy for your people to securely access the data and apps they need.
Your business, with security built in
Security is most effective when it's designed for your organisation. We get under the skin of your strategies, goals and barriers, and your technical readiness. Once we understand where you are now and where you want to get to, our vendor-agnostic security experts develop a realistic blueprint to get you there.
Global security without the headache
Standardise and streamline your security with continuous monitoring, consistent policies and automated systems. Reduce the burden on your teams with a global solution that spans design to delivery and ongoing support and management. Make regulatory compliance easier to achieve and build a security environment that can keep up with the demands of your business.
Keep up with regulatory demands
Global regulations are complex and demanding. Our experts assess your current situation, identify problem areas and build a plan to get you compliant and keep you there. We're the only communications provider with GDPR-compliant Binding Corporate Rules for the very highest levels of data protection.
Get a wider perspective on risk
Managing risk is about more than just technology. We fully assess the bigger picture of people, data, policies and vulnerabilities. Then we help you develop the right strategy and approach to reduce your risk, plug gaps and create an environment that lets you weather disruption and innovate safely.
someone working on a laptop
someone working on a laptop
RESOURCES

What's Trending With Security

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Insights

How to build an enterprise network to negotiate the challenges and opportunities of the future

Colt

October 28, 2025

Insights

How security is driving network transformation and why that's good news for future-readiness

Colt

October 28, 2025

Insights

Building confidence in the age of AI: Why inclusive communication and training matter most

Colt

October 22, 2025

Insights

We’ve won Gartner’s Eye on Innovation Award 2025

Colt

October 14, 2025

News

Colt urges businesses to consider impact of quantum as just 6% name it their top priority in new research

Colt

July 2, 2025

Insights

Is Q-Day the next threat?

Colt

June 27, 2025

Guides & Whitepapers

What is Network as a Service (NaaS)?

Colt

May 14, 2025

Guides & Whitepapers

Supporting AI in the UK - a whitepaper to government

Colt

February 27, 2025

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Partners

Our security Partners

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Fortinet develops and markets a range of security solutions, including firewalls, endpoint security and intrusion detection systems.

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Zscaler specialises in providing cloud-based services to protect enterprise networks, focusing on securing network transformations and cloud-based platforms.

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Palo Alto specialise in advanced firewalls and cloud-based security solutions.

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Versa provide SASE network security solutions, focusing on simplifying and securing enterprise networks through cloud and on-premises capabilities.

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VMware is a leading provider of virtualisation software, and underpins Colt Private Cloud.

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Why colt?

We deliver the extraordinary every day for our customers, people and partners. Here’s what sets us apart.

58
NPS

(Net Promoter Score)

Customer experience has always set us apart and our NPS score is one of the best in the industry.

32,000
+

Buildings connected

With Colt fibre and millions more available via our Colt Network as a Service platform across Europe, Asia and the US.

1,100
+

Data Centres

Unparalleled access to key infrastructure hubs, enabling seamless integration with cloud providers, carrier hotels and enterprise facilities.

Learn about our networkAbout Colt

Explore our Cyber Security products

Colt SD WAN + SASE

Secure. Visible. Agile. Power your zero-trust journey with WAN. Access applications from anywhere with data sovereignty. SASE keeps your data secure within our network.

EXPLORE

Colt Managed Firewall

Strengthen security while reducing complexity and overheads. With continuous monitoring and proactive threat prevention, Colt Managed Firewall blocks attacks before they disrupt operations.

EXPLORE

Colt DDoS Mitigation

Protect critical IT infrastructure against evolving threats to ensure business continuity. Real-time protection from volumetric, protocol and application-layer attacks.

EXPLORE

Colt Secure service edge

With users, data and applications across multiple locations and cloud environments, you need a modern security approach with policies and risk management applied everywhere.

EXPLORE

The extraordinary everyday.

By tackling the complexities and frustrations of the everyday, we take away the grind - making room for the extraordinary.

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