Swiss Cyber Security · Zürich · 47°24′N 8°29′E

Microsoft 365,run securely.For Swiss SMEs.

We build Microsoft environments that withstand attacks, monitor them in operation, and analyse the damage if something happens anyway. Specialists from Zürich, directly reachable.

Starting point

The protection your company needs is usually already included in your Microsoft licences. It just isn't set up.

Bastion closes this gap: with clean configuration, continuous monitoring, and clear reports that your insurer understands too.

Services

Services
Based on the ICT Minimum Standard
We work with
  • Microsoft Defender XDR
  • Microsoft Sentinel
  • Microsoft Entra ID
  • Tenable
Insurability

Your cyber insurance sets conditions. We make sure you meet them.

Cyber insurers now require concrete measures from SMEs: multi-factor authentication on all access points, tested backups, timely installation of updates, protection on all devices. If you can't demonstrate them when a claim arises, you risk reduced payouts.

We bring your environment up to this standard and document it. And if something happens, we deliver the forensic analysis and the report your insurer needs to settle the claim. Insurers and brokers engage us directly for this.

Insurers' minimum requirementsAs of 2026
  • Multi-factor authentication on all access points
  • Tested, restorable backups
  • Timely installation of security updates
  • Protection and detection on all devices (EDR)
Case study · Anonymised
Phishing attack on a Zürich museum: contained the same day, forensic report for the insurer within a week.
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Why Bastion

Enterprise security, sized for SMEs

From Zürich, for Switzerland.

Developed and operated in Zürich. Your data stays in Switzerland, and so do your points of contact.

You talk to the people who build it.

At Bastion there is no ticket loop. We set up your environment ourselves and answer your enquiries personally.

SOAR with AI-assisted triage.

Our SOAR platform pre-assesses alerts with AI support. Judgement, decisions, and remediation remain manual work.

Reports that hold up.

Our analyses are documented to stand up to insurers, authorities, and the board.

Approach

How we start

  1. Step 01

    Initial consultation

    30 minutes, free of charge. You describe the situation, we tell you honestly whether and how we can help.

  2. Step 02

    Assessment

    We review your environment and show what is in good shape and what is missing, prioritised by risk and effort.

  3. Step 03

    Implementation

    We harden the environment, set up monitoring, and stay reachable whenever you need us.

Team

In IT since the start of his career

Luca Seeberger builds and operates IT environments, from secure build-out to operation. For security operations and active forensic cases, Bastion works with experienced cyber security analysts and incident response specialists and brings them in case by case.

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Luca Seeberger, founder of Bastion GmbH, Zürich
Luca SeebergerArchitecture & Deployment
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Contact

Let's talk about your environment

Whether you're building from scratch, securing what you have, or suspect an incident right now: the initial consultation costs nothing and commits you to nothing.