London, United Kingdom

Cyber Security Consulting in London.

Strategic cyber security consulting delivered for finance teams in London, United Kingdom. Independent cyber security consulting that aligns your security investment with the risks that actually matter to your business — board-ready reporting, no vendor bias, measurable outcomes.

40% average reduction in residual risk within 12 months — across Basalt operations in the past 12 months.

Threats facing London finance.

The finance, fintech, government concentration around London sees wire-transfer fraud, instant-payment abuse and identity-driven account takeover. Our cyber security consulting work in Greater London is scoped against this real threat profile, not a generic checklist.

Common pains

  • Security spend that does not map to business risk
  • Compliance demands outpacing internal capacity
  • No clear view of which controls are actually working

How we engage.

  • Threat-informed security strategy on a page
  • Board-ready risk dashboard with quarterly updates
  • Roadmap of prioritised initiatives with effort vs. impact
  • Independent maturity assessment against ISO 27001 / NIST CSF

Reporting

Every finding ships with a control reference against NCSC Cyber Assessment Framework and UK GDPR, with NCSC UK guidance cited where it changes the remediation priority. Board reporting follows the FCA SYSC operational resilience expectation set.

Local context.

Basalt delivers cyber security consulting to organisations across London and the wider Greater London region (population ~9.0M). The finance, fintech, government sectors that anchor the region face a distinct threat profile — wire-transfer fraud, instant-payment abuse and identity-driven account takeover — and our engagements are scoped to that, not a generic playbook. Reporting maps cleanly to the NCSC Cyber Assessment Framework and UK GDPR that British boards already use, with regulator context (NCSC UK) called out where it changes a remediation priority.

Why Basalt for cyber security consulting in London.

Built for finance

Basalt's London practice has been working finance threat profiles long enough to know which controls actually move the dial — and which line items quietly waste budget. We bring that pattern recognition in week one.

Reporting that lands

Findings ship with control references against NCSC Cyber Assessment Framework and UK GDPR and remediation guidance written for the team that has to action it. Your board, your auditor, and your on-call engineer all get something they can use.

No vendor bias

Basalt doesn't resell tooling. British finance clients get an independent read on what's working, what isn't, and what's costing more than it should — not a thinly-veiled sales pipeline.

What we test for.

  • Agentic AI tool-abuse and indirect prompt injection at scale
  • MCP server and AI-tool supply chain compromise
  • Post-quantum cryptographic readiness (NIST PQC migration)
  • Identity-first attack chains across federated SaaS
  • Open-source software supply chain (post-xz, post-tj-actions)

Cyber security in United Kingdom can't be done with last year's threat models. The Basalt practice runs against current attacker tradecraft — agentic AI abuse, MCP and AI-tool supply chain, post-quantum readiness — alongside the legacy infrastructure work that still keeps most organisations awake at night.

Frequently asked questions.

How fast can Basalt start a cyber security consulting engagement in London?

Most London engagements scope inside one week and start within two. Retainer clients can trigger work the same day. We do not pipeline British clients through junior teams — a senior consultant scopes and runs the work end-to-end.

Do you do cyber security consulting on-site in London or remote?

Both. Sensitive work — classified-adjacent environments, live incident response, OT walkthroughs — gets on-site time in London and the wider Greater London region. Routine assessments and detection engineering run remote with a tight feedback loop.

How does Basalt map findings to British regulators?

Every finding ships with a control reference against the NCSC Cyber Assessment Framework and UK GDPR so your compliance team is not re-mapping our report. Where NCSC UK guidance exists for the specific finding, we cite it inline. Board-level reporting follows the FCA SYSC operational resilience expectation set.

What makes cyber security consulting in London different from a generic engagement?

The finance sector concentration in London drives a different threat model than a generic British engagement — wire-transfer fraud, instant-payment abuse and identity-driven account takeover. Our scoping reflects that, and so does the test library we bring to the work.

Is Basalt set up for AI-era threats, not just legacy infrastructure?

Yes — this is core to how we work. Basalt actively researches and tests against agentic AI tool-abuse and indirect prompt injection at scale, MCP server and AI-tool supply chain compromise and identity-first attack chains across federated SaaS. Most regional providers haven't mapped these attack paths; we run them in production against client systems with explicit scope.

Other operations in London.

AI Red Teaming in London

Adversarial testing for LLMs and AI systems

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Penetration Testing in London

CREST-aligned penetration testing

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Code Security Audit in London

Source code review and SAST/DAST integration

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Identity Threat Detection & Response in London

ITDR for identity-driven attacks

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Cyber Security Consulting in other United Kingdom cities.

Ready to start in London?Schedule a free 30-minute scoping call with a senior consultant.

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