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- Cyber security services, dedicated to safeguarding organisations in today’s digital landscape. We help monitor and manage your organisation’s security infrastructure 24/7, so you can make sure all threats and issues are dealt with.
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Protect & Manage
- Our managed security services act as an extension of your organisation and provide a team of security professionals to monitor cyber threats, defend your critical digital assets and react to security issues in real time.
- Overview
- Managed Infrastructure Services
- Cyber Engineering
Detect & Respond
- We not only monitor for security breaches but also prepare for a breach and react swiftly if one occurs. By anticipating and simulating a range of scenarios, we ensure your digital systems are as resilient as possible.
- Overview
- Extended Detection & Response
- Incident Response & Assessments
- Compromise Assessments
Consultancy & Advisory
- Our professional cyber security consultation services help your organisation overcome its security challenges and advise on how best to enhance your security posture with a risk aligned approach.
- Overview
- Maturity and Transformation
- Compliance
- vCISO
- Penetration Testing & Attack Simulation
- Data Privacy & Protection

Who We Are
- Since 2003 we’ve been at the forefront of delivering robust cyber security solutions to businesses across the UK. We provide dependable and advanced security measures to safeguard your business in the ever-evolving digital landscape.
- About Us
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Resources
- Find the latest news, events, thought leadership articles, downloads and case studies from across the cyber security industry, all written by our experienced team of experts at Reliance Cyber.
- Case Studies
- Research & Thought Leadership
- News & Events

Contact us
- We’re always happy to answer your questions and set you on the path to better security. Plus, you can also sign up for a free 30 minute cyber security consultation.
Emergencies
- Are you experiencing a cyber security breach? Get our emergency phone number and find out how we can help you.

World-leading cyber security expertise since 2003

Consultancy & Advisory

Penetration testing

…and attack simulation. Preparing for every eventuality, just in case…

Why it’s important

20%

The annual growth of penetration testing in the UK

…to ensure your operational resilience, sustained trust and financial stability.

81.4%

of UK organisations experienced a cyber attack in 2022

Skills

According to recent reports in the industry…

cybersecurity is now the most sought after technology skills category in the UK.

Product features

Comprehensive assessments, simulating real-world attacks to identify vulnerabilities in your systems.

We provide detailed reports and actionable recommendations to strengthen your defences and mitigate potential security risks quickly and effectively.

How this helps

Without penetration testing, companies face heightened vulnerability exposure, increasing the risk of successful cyberattacks, potential data breaches, financial losses, and regulatory non-compliance.

Conducting regular penetration tests enables proactive identification and mitigation of vulnerabilities, fortifying defenses, and reducing the likelihood of security incidents and their associated ramifications.

Want to test your organisation’s defences? Speak to our experts.

We Work With

How we are unique

It’s all about people

Cybersecurity is, ultimately, about people. How people use technology, how hackers plot to take advantage of your weaknesses and any technical gaps in your defences.

fast forward icon in navy with a ring around it

Our pen testers

Achieving complete security requires experienced experts who comprehend both technical cyber aspects and real-life human behavior, as automation alone cannot ensure total protection.

Realistic simulations

Realistic simulations are crucial as they replicate genuine cyber threats, providing accurate insights into actual vulnerabilities within an organisation’s systems and networks.

Fully qualified and accredited

You need to be sure that our Pen Testers are on your side and that they’re backed by strict accreditations. The Reliance brand is based on how they deploy their knowledge and expertise on behalf of our customers.

Intelligent and resourceful

The full range of pen testing services

Reliance Cyber conducts comprehensive Vulnerability Assessment, examining both internal and external infrastructure, reviewing code and builds, hardening services, and testing wireless networks to uncover vulnerabilities. With CREST accreditation, our Pen-Testers simulate real-world attacks to identify and address potentially damaging weaknesses within your systems.

Case Studies

Find out how we’ve helped businesses prevent cyber attacks nationwide, secure their digital infrastructures.

Since 2003, we have been working with organisations across a wide range of sectors to improve their network and data security. Take a look at some of our case studies to see how we go about it.