Decision-first scoping
Before a single test runs, we agree the decision the output will change — invest, divest, accept, fix. London engagements without a named decision-maker don't get past scoping. That discipline keeps work focused.
London, United Kingdom
Application Security in London.
Application Security in London — built for the finance sector that drives the region. Application security programs built around your engineering org — threat modelling, secure-by-default libraries, AppSec champions and CI/CD guardrails that ship.
3x throughput on security reviews after paved-road rollout — across Basalt operations in the past 12 months.
THREAT VECTOR
Threats facing London finance.
The finance, fintech, government concentration around London sees wire-transfer fraud, instant-payment abuse and identity-driven account takeover. Our application security work in Greater London is scoped against this real threat profile, not a generic checklist.
Common pains
- Security review as the engineering bottleneck
- No threat models for new services
- Pen tests as the only feedback loop
ENGAGEMENT
How we engage.
- AppSec program design with maturity model
- Threat modelling templates and training
- Paved-road secure defaults for your stack
- AppSec champions enablement curriculum
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
Local context.
Basalt delivers application security 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.
RATIONALE
Why Basalt for application security in London.
Regulator-ready output
Every finding is tagged against NCSC Cyber Assessment Framework and UK GDPR controls with NCSC UK guidance cited where it shifts a remediation priority. Your compliance team stops re-mapping our reports.
Continuous, not one-shot
Application Security doesn't end at the report. Basalt's London clients run retainer reviews on a quarterly cadence so the security posture compounds rather than drifting back six months after the engagement.
2026 THREAT LANDSCAPE
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.
FAQ
Frequently asked questions.
How fast can Basalt start a application security 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 application security 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 application security 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.
RELATED OPERATIONS
Other operations in London.
Cyber Security Consulting in London
Strategic cyber security consulting
AI Red Teaming in London
Adversarial testing for LLMs and AI systems
Penetration Testing in London
CREST-aligned penetration testing
Code Security Audit in London
Source code review and SAST/DAST integration
OTHER DEPLOYMENTS
Application Security in other United Kingdom cities.
Application Security in ManchesterApplication Security in BirminghamApplication Security in LiverpoolApplication Security in LeedsApplication Security in SheffieldApplication Security in BristolApplication Security in Newcastle upon TyneApplication Security in EdinburghApplication Security in GlasgowApplication Security in CardiffApplication Security in BelfastApplication Security in Oxford