IT Security Services
Our IT security services are built for organisations that need structured, auditable protection rather than reactive fixes.
Request a Free IT AssessmentWe work with businesses that handle sensitive data, rely on cloud platforms, or must meet regulatory expectations such as GDPR, Cyber Essentials, or ISO-aligned controls.
Security is delivered as a defined service with clear responsibilities, documented controls, and measurable outcomes. Where appropriate, our security work integrates with wider IT support services in London, ensuring protection aligns with how systems are actually used.
Cybersecurity Risk Assessment and Planning
Effective IT security starts with understanding exposure. We carry out structured cybersecurity risk assessments that examine infrastructure, cloud services, endpoints, user behaviour, and third-party access.This service includes:
- Identification of high-risk assets and data flows
- Review of firewall, endpoint, and identity controls
- Assessment of current security policies against recognised frameworks
- Risk prioritisation based on likelihood and business impact
Network and Infrastructure Security
Network security remains a primary defence layer. We secure on-premise and cloud-connected networks using controlled access, segmentation, and monitored perimeter protection.Our IT security services UK offering includes:
- Firewall configuration and ongoing rule management
- Secure VPN access for remote and hybrid teams
- Network segmentation to limit lateral movement
- Continuous monitoring for abnormal traffic patterns
Endpoint Protection and Device Security
Endpoints are frequently targeted through phishing and malware. We secure laptops, desktops, and servers using centrally managed protection platforms.This service covers:
- Advanced anti-malware and behavioural threat detection
- Disk encryption to protect data at rest
- Device compliance monitoring
- Automated response to suspicious activity
Identity, Access, and Email Security
Compromised credentials remain one of the most common attack vectors. Our cybersecurity services focus on controlling who can access systems and how that access is used.Key elements include:
- Multi-factor authentication across critical systems
- Role-based access controls aligned to job functions
- Secure email filtering and phishing protection
- Ongoing review of privileged accounts
Cloud and Microsoft 365 Security
Cloud platforms introduce shared responsibility. We secure Microsoft 365 and cloud environments by configuring security controls that are often left unused by default.This service includes:
- Secure configuration of Microsoft 365 security settings
- Conditional access policies
- Audit logging and alerting
- Protection against account takeover and data leakage
Compliance and Cybersecurity Governance
Many organisations require demonstrable security controls rather than informal practices. Our IT security services support compliance with recognised standards.We assist with:
- Cyber Essentials and Cyber Essentials Plus preparation
- GDPR-aligned security controls
- Policy development and security documentation
- Evidence gathering for audits and client due diligence
Incident Response and Ongoing Security Monitoring
When security incidents occur, response time matters. We provide structured incident response procedures alongside continuous monitoring.This includes:
- Defined incident escalation paths
- Threat detection and alerting
- Forensic support during incidents
- Post-incident reporting and control improvement
Why Choose Us for IT Security
Our approach to cybersecurity services London businesses rely on is based on clarity, accountability, and technical depth.- Security delivered as a defined service, not vague advice
- Controls aligned to recognised standards and compliance needs
- Clear documentation and reporting for audits and insurers
- Practical security that fits real operational environments
What our clients say about us...
‘London Systems assisted us with a complete migration to a new IT system. The migration was seamless from start to finish thanks to London System’s professionalism and expertise. We continue to work closely with them and their Help Desk team who are all dedicated to responding quickly with relevant advice and solutions.'
- Peter Dalton, COO, CBC Insurance
‘London Systems have been there when I needed them and I now understand the value of having a ‘go to’ person, my Account Manager.’
- Fleur Holland-Haque, Operations Director Burns Sheehan
‘We had complete faith in London Systems during our office relocation, this challenging period; we needed to keep operational whilst undergoing very impactful changes.’ ‘We were supported at every step and there were no issues or major problems during the whole of the project relocation. We are delighted with the final solution and continue to enjoy a strong partnership with London Systems.’
- Peter Copus Head of Quality & Compliance, Recruitment Employment Confederation
‘London Systems provide the best support at the best price. They’re easy and friendly to work with and experts at what they do… a valued partner for us. We’re really pleased that our relationship continues to grow with our business.’
- Rob Allin Financial Director, Business Partners Accountants
Some of our clients
London Systems Partners - Our Partner Status - Microsoft Partnership
Partner status is very important to us. It means that we; are accredited, have a thorough understanding of the product or service, are qualified to support the product or service, regularly talk to customers about the product or service. It does not mean that we are merely a re-seller.
IT Security FAQs
How are IT security services different from general IT support?
IT security focuses on protecting systems, data, and users from threats and compliance risks. General IT support focuses on user issues, devices, and availability rather than threat prevention.
Do you provide cybersecurity services for small and mid-sized businesses?
Yes. Our IT security services UK offering is designed for organisations that need structured protection without enterprise-level overhead.
Can your cybersecurity services support compliance requirements?
Yes. We support Cyber Essentials, GDPR-aligned controls, and client-driven security requirements through documented and auditable measures.
How do you manage security for remote or hybrid teams?
We secure remote access using identity controls, endpoint protection, and monitored connections to reduce exposure outside the office.
Do you monitor systems for security threats?
Yes. Monitoring and alerting form part of our cybersecurity services, allowing early detection of suspicious activity.
Will security changes disrupt our staff?
Controls are implemented with usability in mind, balancing protection with day-to-day operations.
Can IT security work alongside our existing IT support provider?
Yes. Our security services can operate independently or alongside existing IT arrangements where required.
Secure Your Business with Confidence
Strong IT security is about preparation, visibility, and accountability. If your organisation needs structured cybersecurity services that reduce risk and support compliance, we are ready to discuss your requirements. Schedule a consultation to review your current security posture and understand how our IT security services can protect your organisation.
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