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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 (XDR)
- Cyber Incident Response Services
- 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
- Partners
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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
- Technical Blogs
- Resource Hub

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

General News

Former Paolo Alto VP James Lee Joins Reliance Cyber as CRO to Scale Revenue and Client Engagement

LONDON, 5th March, 2025 Reliance Cyber, a leading provider of cyber security services , today…

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PCI DSS version 4.0 has arrived – why your organisation should beat the clock and transition now

There’s a brand new version of PCI DSS (Payment Card Industry Data Security Standard), released…

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Supporting Customers’ Strategic Goals With Enhanced Cyber Security Services

Reliance Cyber, a leading mid-market pure-play cybersecurity provider, has announced the launch of its latest…

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The Interserve data breach: Not detecting an incident does not mean you’re in the clear

One of the many issues raised by the Information Commissioner’s Office (ICO) in their investigation…

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Reliance Cyber appoints new Chief Revenue Officer to drive business development

Cyber security specialist, Reliance Cyber, has appointed Rob Walton as Chief Revenue Officer, to support the…

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Reliance Cyber appoints new Chief Technology Officer to support business growth

Cyber security specialist, Reliance Cyber, has appointed Luke Hull as Chief Technology Officer, as the business…

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Microsoft is enabling account lockout by default – that’s good news for security

Qasim Armstrong, CREST Registered Penetration Tester at Reliance acsn, discusses Microsoft’s introduction of account lockout…

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John Noble CBE on cyber hygiene and defending the healthcare industry from digital threats

John Noble CBE brings an incredible wealth of experience to the Reliance Cyber Advisory Board.…

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Who works in the cyber industry? Professor Victoria Baines: “The cyber industry needs good communicators too”

Reliance Cyber Advisory Board member, Professor Victoria Baines, was recently named in SC Media’s top…

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Okta Breach Notification Update

Since yesterday, Okta has released two important updates. Firstly, an updated statement on the breach,…

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Okta breach – our response and recommendations

Okta – a major Identity and Access Management vendor – has confirmed that it has…

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