About us

One goal: secure Microsoft environments for Swiss SMEs

Bastion is a Zürich start-up founded by Luca Seeberger. He has worked in IT since the start of his career, in engineering and architecture. For security operations and forensics, Bastion brings in experienced cyber security analysts and forensics specialists case by case. This covers what an SME needs for a secure Microsoft environment; from a clean build to the analysis when something has happened.

We deliberately stay small. With us, you speak directly with the people who set up your environment, monitor it and investigate it when it matters. No intermediaries, no hold music, no project manager passing you along.

Why “Bastion”?

Built before the attack comes

A bastion is the projecting part of a fortress: built before the attack comes, and laid out so the defenders can see what is heading their way. That is how we understand cyber security: the protection is in place before anything happens, and when it matters, we know what to do.

  • The wall: in place before the attack comes
  • The core: what you protect

Founder & network

Luca Seeberger, founder of Bastion GmbH, Zürich

Luca Seeberger

Founder · Business Informatics Specialist, Advanced Federal Diploma

Luca has been building and running IT environments for Swiss companies for 18 years, most recently under his own flag as Seeberger Engineering. At Bastion he is responsible for architecture and deployment: Microsoft 365, Entra ID, Intune, Conditional Access and the security policies that turn a standard setup into a protected environment.

For security operations, incident response and active forensic cases, Bastion works with experienced cyber security analysts and forensics specialists and brings them in case by case. Responsibility for your case stays with Bastion.

How we work

We build on Microsoft technology because most Swiss SMEs already license it. The protection a company needs is often already included in its existing subscription; it just is not configured. That is the gap we close.

For analysis we use a SOAR platform we developed ourselves (Security Orchestration, Automation and Response): it consolidates alerts and handles the first, efficient triage with AI-assisted threat analysis. This lets us analyse log data and incidents in hours instead of days. The actual security work remains manual: every analysis is reviewed and signed off by an experienced specialist.

Everything is developed and operated here in Zürich. Your data stays in Switzerland.

Legal form

Bastion GmbH is in formation (i. Gr.). Until it is entered in the commercial register, we provide services under the personal responsibility of the founders. Details can be found in the legal notice.