Keep your business secure from cyber threats.

Worldwide, threats from cyber-attacks are growing both in numbers and intensity. As effective security relies on multiple layers of defence, we provide a holistic security with protection at all the various vulnerability touchpoints: at network edge and core and along the network path.


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Your security services explained

Our solutions are designed to reduce risk and complexity and accelerate your time to market with rapid implementation, end-to-end SLAs, flexible contracts and service-based pricing.



Managed Firewall

Managed dedicated & virtual firewall

Our Next Generation Firewall is fully managed by Colt, and offers perimeter security, application awareness and content security, including IDS/IPS, anti-malware, URL filtering and SSL inspection. You can choose different managed firewalls to meet your security demands, and to balance performance and cost.

Dedicated for a single customer installed at customer premise (Dedicated)

Firewall instance on shared infrastructure, available with IP VPN (Virtual)

Feature-rich with Advanced Threat Prevention (ATP), Intrusion Detention and Prevention (IDP), Content and Application security

Cost effective firewall delivering the benefits of virtualization through fast provisioning, and eliminating your need to maintain a physical network firewall



Network Encryption

Our Network encryption services offers encryption at Optical, Ethernet and IP layers. With wire-speed performance and complying with leading encryption and authentication standards, Colt Encryption services offers flexible deployment and provides the very highest levels of performance and security.

Encryption available for Ethernet, Optical and Voice services

Protects in-flight data through end-to-end encryption with industry-leading authentication mechanisms

Key management either by Colt or Customer


IP Guardian

DDoS Protection (IP Guardian)

Our service filters DDoS attacks within seconds and without the necessity for human intervention, while enabling the flow of legitimate traffic. It effectively blocks threats such as high-volume flood attacks, stealthy application-layer attacks and attacks hidden in SSL packets. Colt implements the DDoS protection directly in the network, so no rerouting or tunneling or specific IPs required and keep your services up 24x7.

DDoS protection as part of the network backbone for Colt DIA customers

Protection deployed at strategic locations at Colt global network and stop a DDoS attack before it reaches you

Fully automated and unlimited mitigation

Secure Web Gateway

Secure Network Gateway

Secure Web Gateway

We have partnered with Zscaler to bundle their security solution as an optional add-on on to our network services, including Colt IP Access, IP VPN and our award-winning SD WAN solution. We are directly peered with Zscaler Cloud in various locations globally, taking traffic directly to Zscaler for reduced latency and a consistent and improved user and application experience.

Zscaler cloud-based security resell solution available with Colt IP Access, IP VPN and SD WAN services

Securely connect to Internet, Public & Private Cloud from any site: Data Centers, Branch offices and mobile locations

Colt will route traffic through Zscaler Cloud, where security policies are applied & managed by customer

A provider you can trust

We can keep your network safe, control escalating security costs, and safeguard your IT infrastructure,  so you can stay focused on growing your business.

Proactive, expert support

Our managed security services are managed by highly specialized engineers and analysts in Colt’s Cyber Security Operations Centers (CSOC) across Asia and Europe.  In addition to having experience and accreditations in managing key vendor technologies, our security specialists offer end-end management from design through implementation, to 24x7 proactive management, monitoring, and reporting.

Manage your services online

We offer a web-based intuitive portal for Firewall and DDoS Mitigation services. This provides users a central view of their security devices and gives insight into how their security services are performing. This portal act as a first port of call for any investigations relating to the security services. It provides a comprehensive view of Firewall configuration details and DDoS Alerts and mitigation status.

Protect against revenue loss

Protect against revenue loss and safeguard your internal information due to fraud and security driven outages. Control escalating IT security costs and operational processes. Our security expertise at hand reduces total cost of ownership and keeps pace with technology as we update our security solutions and technology as times change and threats evolve.

Solution simplicity

One-stop-shop for Network and security to ensure you have an end-to-end control and reduce overheads to manage multiple vendors. Colt offers a range of service options and feature-set tailor made to address your security and business requirements.

Join over 25k+ customers


Why choose Colt?

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A Global Presence

We are trusted by over 25,000 customers globally - including some of the world's largest businesses, 18 of the top 25 banks and over 650 capital markets firms around the world. All that and still record NPS scores.

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Technology leaders

Our technology sets us apart. We were one of the first to roll-out on-demand provisioning, and continue to lead with API, SDN + Edge compute compatibility for our customers.

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Spoilt for choice

Over 32,000 buildings have direct fibre connectivity to our network. We connectmore data centres in Europe, USA and Asia than any other provider, so you won't have to compromise on security & convenience.

Still not sure?

We'll help you build a solution tailor-made for your specific cloud environment and networking needs.

With more connected data centres across Europe, USA & Asia than any other provider backed up with the carrier-grade Colt IQ Network, whatever you choose, you're in safe hands.