External Security Posture · Johannesburg · London

Know what attackers see before they do.

We continuously assess your public-facing surface, then turn exposure into a prioritised plan your team can actually action. Nothing intrusive. No noise. Just the risks that matter, tracked to closed.

Available for new partnershipsJohannesburg -:-:-
How It Works

The Fourths also engineers the platforms, AI systems, and compliance software that regulated businesses run on. Security is simply where we now lead.

A silhouetted figure at screens of code, the view an attacker has

001 · What You Get

Exposure, prioritised and closed.

Sentinel in full
01

Exposure discovered

We map what is reachable from the outside across your domains, email, and web services, including the assets you have forgotten you own.

02

Risk prioritised

You get a short, ranked list of what actually exposes you, in business terms, not a raw dump of findings.

03

Remediation tracked

Every issue is followed through to closed, and stays closed, with the record to prove it.

How the engagement runs, from first assessment to managed monitoring

002 · Coverage

What we assess.

Outcome-led, always
Domain and subdomain exposure Email authentication and spoofing resistance Transport and certificate health Web-facing service and header hygiene Forgotten and shadow assets

We treat your external surface the way an attacker would: patiently, from the outside, looking for the one thing you missed. Then we help you close it before they find it.

Selected Work

Platforms in production.

10 case studies in production
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003 · Beyond Security

We also build the things worth protecting.

All services

Platforms, AI systems, and the software regulated businesses run on remain core to what we do. The difference is that everything we ship is built to be defensible from day one, not audited into safety later.

01

Platform Engineering

Production-grade SaaS and internal platforms. Architecture, build, and ongoing ownership from database schema to deployment pipeline.

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02

AI Integration

AI that fits into your existing stack. Document processing, RAG pipelines, and workflow automation, designed around POPIA and FCA obligations from the start.

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03

Technical Strategy

The CTO perspective without the full-time salary. Architecture decisions, vendor evaluation, and technical due diligence on a retainer your finance team can approve.

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04

Compliance Systems

Software built to stand up to audit, with the evidence ready before the auditors arrive. POPIA, FCA, MCOB, and FSCA requirements built into the architecture, not bolted on after.

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05

Performance Tracking

Dashboards, analytics pipelines, and reporting systems that give leadership real numbers, not summaries of summaries built on stale exports.

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06

AI Agent Systems

Purpose-built AI agents for operations, document handling, internal routing, customer triage. Production-grade systems, not proof-of-concept demos.

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07

Web Design & Campaigns

Agency-grade web design for companies that cannot afford generic. Marketing sites, campaign pages, and digital presence built to convert.

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08

Managed Microsoft 365

We own your Microsoft environment and run it to an audit-ready standard, hardened, monitored, and evidenced, every month.

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09

Immersive Classrooms

Safe, curated virtual reality for schools, fully managed. Headsets, curriculum-aligned content, and coding & robotics, with no IT burden on the school.

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10

Retainer Partnership

A dedicated engineering team, billed monthly. No project-end exits. No knowledge transfer taxes. Your platform, continuously owned by the team that built it.

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Who We Work With

Built for businesses under real scrutiny.

01

Regulated fintech & lending

South African and UK financial services firms where POPIA, FSCA, FCA, and MCOB obligations are not optional, and where a failed audit is an existential event.

02

Operations-heavy businesses

Companies drowning in document handling, routing, and manual triage who need production AI and platforms that hold up at operational scale, with full audit trails.

03

Founders scaling past the prototype

Teams who built something that works but now need it to survive production, architecture, compliance, and ownership from a team that stays for the long run.

Trusted by teams we build for

Gable GroupGable Group HealiosHealios caicai JMKJMK RockRock Mitig8Mitig8 NuNu Frozen Food FactoryFrozen Food Factory

From the Blog

What we're writing about.

All posts

See your exposure before someone else does.

A first assessment tells you where you actually stand. Most teams are surprised.

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