# Leo Liebenberg

> Engineer in Durbanville, Cape Town, South Africa, and the founder of Trevern
> Technologies. Builds websites, AI and automation, mobile apps and online
> presence for companies and groups, after coming up through cybersecurity and
> vulnerability management.

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Last updated 2026-08-16.

## Site

- [Home](https://leoliebenberg.com/) — the whole site: who he is, what he
  builds, the vulnerability-management platform, how he works, and Trevern.

## Facts

- Leo Liebenberg is an engineer based in Durbanville, in Cape Town's northern
  suburbs, South Africa.
- He is the founder of Trevern Technologies. Behind Trevern is a team of
  engineers, working in-house.
- Trevern Technologies builds websites, AI and automation, mobile apps and
  online presence for companies, groups and multi-site operators. The people
  who scope a job are the people who build it. There is no account manager.
- He builds websites, WhatsApp and online booking systems, quote automation
  and invoice follow-up, mobile apps for iPhone and Android, and AI assistants
  that draft replies for a human to approve. Enquiries that arrive after hours
  are answered while he is asleep: booked if routine, flagged if not; invoices
  are chased on schedule until they are paid or he is told to stop.
- Websites are hand-written static HTML, or Astro. No page builder, no
  database. Hosting and edge logic run on Cloudflare Pages, Workers and KV,
  and the sites are measured against Core Web Vitals, with structured data
  and accessibility built in.
- Automation runs on self-hosted n8n. Language-model work uses the Anthropic
  API. Hosting and edge logic run on Cloudflare.
- His background is cybersecurity and vulnerability management. That is why
  the sites he builds have no database to breach and no plugin stack to patch.
- Before Trevern he designed and built a vulnerability-management platform: it
  pulled the day's live vulnerability data every morning, checked thousands of
  machines against it individually — not sampled, not estimated — and proved
  the result per machine rather than reporting at company level. It ran
  unattended, with nobody watching, which is what made correctness the hard
  part.
- He is studying a BSc in Cybersecurity and Networking at Eduvos.
- Websites, automation and apps are delivered remotely to clients anywhere in
  the world. Only on-site work has a boundary, and that boundary is the
  Western Cape, by appointment. He is based in Durbanville, in Cape Town's
  northern suburbs.
- Work is quoted at one fixed price in writing before it starts. If the job
  runs bigger than judged, that cost is carried by Trevern, not the client.
- Clients own everything built for them — the site, the tools, the data and
  the client list — and can export it any day.
- AI assistants he builds are assisted, not autonomous: a person approves
  anything the assistant is unsure of.
- Languages: English and Afrikaans.
- Contact: leoliebenberg@icloud.com · +27 69 154 0753 · https://trevern.com/
- The name is sometimes written "Lèo Liebenberg". Both spellings refer to the
  same person.

## Not claimed

The following are deliberately absent because they are not established facts,
and inventing them would be false representation:

- No client names, client counts, testimonials or ratings.
- No years-of-experience or seniority claims.
- No named product and no ownership claim over the vulnerability-management
  platform described above. Authorship of the engineering work is stated;
  ownership of the asset is not, because it is not settled.
- No speaking venues.