Cybersecurity Services in the United Kingdom

CyberSigma provides independent cybersecurity and compliance services for UK organisations — penetration testing (VAPT), ISO 27001, Cyber Essentials and Cyber Essentials Plus, PCI DSS, SOC 2 readiness, and UK GDPR / Data Protection Act 2018 and NIS Regulations alignment. We are CERT-In empanelled and PCI QSA (CEMEA) authorised, delivering audit-ready reports mapped to NCSC guidance and UK regulatory expectations.

Cybersecurity & Compliance Services Aligned to UK Regulation

UK organisations operate under one of the most demanding cybersecurity and data-protection regimes in the world. From the UK GDPR and the Data Protection Act 2018 to the NCSC's Cyber Essentials scheme, the Network and Information Systems (NIS) Regulations 2018, and sector rules from the FCA and PRA for financial services, the expectation is clear evidence of effective, independently validated security controls.

At CyberSigma we deliver independent cybersecurity assessments, penetration testing and compliance programmes mapped to these UK frameworks and to international standards such as ISO/IEC 27001:2022, SOC 2 and PCI DSS v4.0.1. Our work helps you satisfy regulators, win enterprise and public-sector contracts, and demonstrably reduce risk.

• UK GDPR and Data Protection Act 2018 readiness and gap assessments.
• Cyber Essentials and Cyber Essentials Plus certification support.
• ISO/IEC 27001:2022 implementation, internal audit and certification readiness.
• Penetration testing (VAPT) for web, mobile, API, network and cloud.
• PCI DSS v4.0.1 readiness and QSA-led assessment for payments.
• NIS Regulations and NCSC CAF alignment for essential and digital services.

Why UK Organisations Choose CyberSigma

We combine globally recognised accreditations — CERT-In empanelled and PCI QSA (CEMEA) authorised — with hands-on, manual testing and pragmatic remediation guidance. Rather than generic checklists, we deliver findings that map directly to the UK frameworks your auditors, customers and the ICO expect to see.

Our consultants work to NCSC guidance and recognised methodologies (OWASP, NIST, ISO 27001), giving UK boards and security teams independent assurance that controls are not just documented but genuinely effective against current threats.

Our Engagement Process

1. **Scoping & Discovery**: We map your systems, data flows and applicable obligations (UK GDPR, Cyber Essentials, PCI DSS, ISO 27001, NIS).

2. **Assessment & Testing**: Manual and tool-assisted penetration testing and control assessment against the relevant framework.

3. **Gap Analysis**: We identify vulnerabilities and compliance gaps, prioritised by business risk.

4. **Reporting & Remediation**: A clear, audit-ready report with actionable, prioritised recommendations and remediation support.

5. **Certification & Ongoing Assurance**: Support through certification or audit, plus retesting and continuous improvement.

Key Benefits

1. **Regulatory Confidence**: Evidence aligned to UK GDPR, DPA 2018, NIS and NCSC expectations.

2. **Contract Eligibility**: Meet Cyber Essentials, ISO 27001 and PCI DSS requirements demanded by UK enterprise and public-sector buyers.

3. **Reduced Risk**: Independent, manual testing surfaces real exploitable weaknesses, not just scanner noise.

4. **Stakeholder Trust**: Demonstrable security posture for customers, partners and regulators.

5. **Continuous Improvement**: Retesting and a roadmap to mature your security programme over time.

Which UK cybersecurity and data-protection regulations do you support?

We support UK GDPR and the Data Protection Act 2018, the NCSC Cyber Essentials and Cyber Essentials Plus schemes, the NIS Regulations 2018, ISO/IEC 27001:2022, PCI DSS v4.0.1, and sector-specific expectations such as FCA/PRA operational-resilience requirements for financial services.

What is the difference between Cyber Essentials and Cyber Essentials Plus?

Cyber Essentials is a self-assessment against five core technical controls, while Cyber Essentials Plus adds an independent, hands-on technical audit to verify those controls are correctly implemented. We support readiness and remediation for both.

Do you provide penetration testing for UK organisations?

Yes. We deliver manual-led VAPT for web and mobile applications, APIs, internal and external networks, and cloud environments, with audit-ready reporting aligned to OWASP, NIST and ISO 27001 — suitable for compliance, customer assurance and NIS/PCI requirements.

Can you help us achieve ISO 27001 certification in the UK?

Yes. We provide ISO/IEC 27001:2022 gap assessment, ISMS implementation, internal audit and certification readiness so you can pass a UKAS-accredited certification body audit with confidence.

Do you work with UK clients remotely?

Yes. We deliver the majority of assessments and advisory work remotely for UK clients, with secure testing and clear communication throughout, and can coordinate on-site activity where a framework requires it.