GSI · LDN · PRN · SKP · MLA
Security for the work that has to hold up.
GSI Cyber is a cybersecurity, audit, investigations and digitalization consultancy across 4 jurisdictions. We test what you have, establish what happened, and help you fix what matters.
Security operations · field delivery across four jurisdictions
GSI · SERVICES
Six service lines. One standard of work.
Every engagement starts with scope and ends with something you can act on — not a slide deck.
- 01 Security audits & assessments Posture reviews, configuration and cloud audits, controls testing.
- 02 Penetration testing & technical assessment Adversarial testing of applications, networks and cloud.
- 03 Investigations & digital forensics Incident investigation, evidence handling, document and metadata forensics, OSINT.
- 04 Compliance & GRC ISO 27001, GDPR and sector frameworks, policy, audit-readiness.
- 05 Digitalization & secure transformation Modernising systems with security built in from the start.
- 06 Advisory & managed security Ongoing security partnership and a named point of contact.
GSI · LABS
We don’t just advise — we build.
GSI Labs is where our engineering side lives: tooling for the problems we keep meeting in the field, held to the same standard as our advice.
SecureDrop
Encrypted file transfer — a WeTransfer that actually keeps your files private.
[[STATUS: confirm — default "In development — request early access"]]Intelligence dashboards
Bespoke OSINT and monitoring dashboards, built for clients.
[[STATUS: confirm — default "Built for clients on request"]]
GSI · ENGAGEMENT
How we work
A straight line from question to fix — and proof it’s fixed.
- 01
Assess
We scope the work, establish the facts, and agree what good looks like.
- 02
Report
Findings ranked by risk, in language your engineers and your board can both use.
- 03
Remediate
We help you fix what matters, then verify it is fixed.
GSI · STANDARDS
Standards & credentials
Marks shown as held are set by the firm — placeholders below until confirmed.
Information security management
Auditing and advising to the standard.
[[ISO 27001 STATUS: confirm certified / aligned]]
Cyber Essentials
UK baseline technical controls.
[[CYBER ESSENTIALS STATUS: confirm]]
Data protection
ICO registration and data-protection practice.
[[ICO REGISTRATION: confirm number]]