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Experiencing a cyber incident right now? Call our 24/7 emergency line: (+44) 20 3951 4401  · Emergencies only
UK Cybersecurity Consultancy

All for Security.
Security
for All.

Lean, agile cybersecurity delivered by certified experts — combining strategic governance, deep technical capability and hands-on incident response for organisations across the UK and internationally.

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24/7
Emergency incident response — every day of the year
1,000s
Incidents responded to globally across every major sector
Lloyd's
Approved partner of a leading Lloyd's of London cyber broker
Active Incident?

We respond immediately — 24 hours a day, 7 days a week.

Our on-call incident response team is standing by. Call the emergency line now — do not wait.

24/7 Emergency Line
(+44) 20 3951 4401
General Enquiries
020 3951 4413
Email
jalil@musketeers-security.com
London Sales Office
Cheapside, London EC2V 6AZ
Our Services

Six disciplines. One integrated security capability.

From the moment an incident strikes to the long-term governance programme that prevents the next one — Musketeers Security delivers the full spectrum of cybersecurity expertise your organisation needs.

24/7 Response
NCSC CIR Assured

Incident Response & Cyber Insurance

Rapid deployment of certified responders when an incident strikes — delivered through our NCSC Cyber Incident Response Assured partnership. Three retainer tiers for guaranteed access, plus Lloyd's of London cyber insurance brokerage.

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GRC

Cyber & AI GRC

Bespoke cyber governance, risk and compliance — quantified risk assessments, vCISO, NIS2, ISO 27001, DORA, PCI-DSS, cyber due diligence and M&A advisory. Independent advice. No vendor agenda.

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Offensive & Defensive

Technical Information Security

Penetration testing, red teaming, vulnerability assessment and security architecture review. We find and exploit the weaknesses before an attacker does — and help you fix them permanently.

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AI-Enhanced

Managed Security Services

AI-enhanced SOC, MXDR, Microsoft 365 security management and DLP — delivered through our MSSP partnership with fully independent advisory. 24/7 threat detection, no vendor lock-in.

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Bespoke

Cloud, Identity, DevSecOps & AI

Bespoke cloud security architecture, identity and zero trust design, DevSecOps pipeline integration and AI automation — built for your environment, not anyone else's.

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TPRM & M&A

Third-Party Risk & Cyber Due Diligence

Real-time vendor ecosystem monitoring, AI-powered TPRM, M&A cyber due diligence and financial risk quantification — delivering supply chain visibility that point-in-time assessments cannot.

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Why Musketeers Security

Elite expertise. Lean delivery. No enterprise overhead.

We combine the calibre of expertise found in the world's largest security practices with the speed, directness and accountability of a specialist firm. Every engagement is led by senior certified professionals — not managed by account teams and delivered by graduates.

  • World-class certificationsCISSP, CISM, OSCP, GPEN, GCIH, CCSP, AWS/Azure/GCP security. The qualifications that matter under pressure — held by the people who will actually work on your engagement.
  • Decades of global experienceThousands of incidents responded to across multiple continents. The risks we identify and the controls we recommend are informed by what we've seen exploited in the real world.
  • SC & DV cleared consultantsSecurity-cleared professionals available for government, CNI and sensitive environments where standard commercial providers cannot operate.
  • Truly independentNo commercial relationship with any platform vendor, tool provider or framework body. Our recommendations are based solely on what is right for your organisation.

Trusted credentials & partnerships

NCSC Assured

NCSC CIR Assured Delivery

Incident response delivered through our exclusive NCSC Cyber Incident Response Assured partnership — meeting the UK government’s rigorous technical standards for IR capability.

Insurance

Lloyd's Approved Partner

Approved partner of a leading Lloyd's of London cyber insurance broker — aligning security posture with insurability from day one.

Clearance

SC & DV Cleared

Security-cleared consultants for government, defence and critical national infrastructure engagements.

Certifications

CISSP · CISM · GCIH

Holders of the certifications that underpin rigorous security practice — CISSP, CISM, OSCP, GCIH, CCSP and more.

Compliance

Multi-Framework

Deep expertise across NIS2, DORA, ISO 27001, PCI-DSS, CAF, SWIFT CSCF, Cyber Essentials and sector-specific obligations.

Our Unique Process

The Security Confidence Method™

A simple, proven framework that turns complex security challenges into clear, measurable outcomes. Not a checkbox exercise — a structured journey from uncertainty to confidence.

Our methodology is our differentiator. It gives buyers a clear, memorable framework and turns complex services into a simple journey — one that becomes a powerful brand asset scalable across growth, training and partnerships.

ASSESS Find the real risk PROTECT Fix the highest gaps SUSTAIN Keep confidence alive THE SECURITY CONFIDENCE METHOD™ Clarity · Results · Confidence
01

Assess — Find the Real Risk

Expert-led security assessment, review of your specific threat landscape and a prioritised risk roadmap — not a generic benchmark. We find what actually matters for your organisation.

02

Protect — Fix the Highest Gaps

Targeted remediation of your highest-priority risks. Strengthened controls, reduced exposure and measurable security improvement — delivered by the consultants who identified the risks.

03

Sustain — Keep Confidence Alive

Ongoing advisory, quarterly reviews, board-level reporting and continuous improvement. Security is never done — Musketeers Security stays with you as your organisation and its threats evolve.

Our People

Senior experts.
Not graduate delivery.

Every Musketeers Security engagement is led by practitioners who have done this at the highest level — inside government agencies, global banks, critical infrastructure and the world's largest security practices.

We are a lean, agile collective of certified security professionals. We don't have a pyramid of graduates behind our senior leads. The person you speak to is the person who does the work.

CISSP CISM OSCP GPEN GCIH CCSP SC Cleared DV Cleared AWS Security Azure Security
Meet the Musketeers
The Musketeers Security team — City of London, Royal Exchange
Musketeers Security · City of London
24/7
On-call response capability
100%
Senior-led engagements
SC/DV
Cleared consultants available
Third-Party Risk Management

Real-time visibility across your entire vendor ecosystem.

A single undetected vulnerability in your supply chain can wipe deal value overnight, trigger regulatory action or provide the foothold an attacker needs to reach your organisation. Traditional point-in-time vendor assessments create a false sense of assurance — they show you a snapshot of a risk landscape that changes every day.

Musketeers Security delivers continuous, AI-powered TPRM that monitors your entire vendor ecosystem in real time — surfacing threats, quantifying financial exposure and automating compliance evidence before issues escalate.

Intelligence

Cyber Risk Ratings

Quantitative scores across 20 risk categories for every vendor in your ecosystem.

Predictive

Ransomware Susceptibility

Predictive indicator of a vendor's likelihood to experience a ransomware attack — before an incident occurs.

Dark Web

Continuous Monitoring

Real-time monitoring across your supply chain — dark web, criminal marketplaces and leak channels.

Visibility

4th & 5th-Party Exposure

Maps hidden upstream vendor connections to reveal concentration risk completely invisible to traditional assessments.

Financial

Risk Quantification

Translates technical vulnerabilities into probable financial loss in pounds and pence.

AI-Powered

Assessment Agent

Investigates vendor findings, benchmarks prospective vendors and answers plain-language compliance questions in seconds.

M&A Cyber Due Diligence

A target company's undetected vendor vulnerabilities can wipe deal value overnight. Musketeers Security delivers the intelligence buyers, sellers and legal advisers need — before signing.

  • Pre-deal cyber risk score — delivered in hours, not weeks
  • Dark web exposure check on target and supply chain
  • Hidden 4th & 5th-party vulnerability identification
  • Financial risk quantification for deal valuation
  • Ransomware susceptibility of target vendor base
  • GDPR, NIS2, ISO 27001 and FCA compliance mapping
  • Defensible reports for W&I insurance and legal counsel
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Sectors We Serve

Deep sector understanding — not generic frameworks applied without thought.

Every sector has its own regulatory obligations, threat landscape and operational context. Our solutions are designed around yours.

Financial Services & Fintech

DORA, PCI-DSS, FCA obligations, SWIFT CSCF — and the operational resilience requirements that financial entities now face.

Legal & Professional Services

Client data obligations, matter security, M&A cyber due diligence and the cyber risk that legal firms increasingly carry on behalf of clients.

Technology & SaaS

ISO 27001, SOC 2, customer assurance, secure development practices and the cloud security architecture that growth-stage tech companies need.

Critical National Infrastructure

CAF framework, NIS2 essential entities, OT/SCADA security and the SC/DV-cleared expertise required for sensitive government environments.

Healthcare & Life Sciences

Data sensitivity, NIS2 essential entity obligations, medical device security and the regulatory complexity that healthcare organisations navigate.

Private Equity & Investment

Pre-acquisition cyber due diligence, portfolio company security assessments, exit preparation and the M&A intelligence that deal teams need before signing.

Retail & E-Commerce

PCI-DSS v4.0, consumer data protection, payment fraud prevention and the security of digital commerce infrastructure at scale.

International Organisations

Cross-border incident response, multi-jurisdiction regulatory compliance and the security expertise demanded by organisations operating across multiple geographies.

Get in Touch

Speak to our team today.

Every conversation starts with listening — to your environment, your obligations and your concerns. No generic sales deck. No obligation.

Send an Enquiry Call: 020 3951 4413

Active incident? Call our emergency line immediately:  (+44) 20 3951 4401

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