Kosifuchs
IT Security & Hardening for Private Users, SMBs and Organizations

For clients

Many IT environments look stable from the outside until you take a closer look. Then you find exposed services, weak segmentation, unclear privileges, or logging that collects data but is not very helpful when something goes wrong.

That is where I come in. I look at existing environments in a structured way, assess risks transparently, and help build systems that are not only running, but are also understandable, maintainable, and realistically secured.

I work pragmatically. No inflated slide-deck security, but measures that work in daily operations and still make sense months later.

Get in touch Request without obligation

What I can help with

  • Network segmentation, VLAN structures, and controlled access paths
  • Firewall and remote-access concepts for small and mid-sized environments
  • System and service hardening on Windows and Linux
  • Logging, monitoring, and preparation for meaningful SIEM correlation
  • Risk assessment, technical documentation, and clear handover

How I work

  1. Understand the environment before treating symptoms
  2. Make risks, dependencies, and priorities visible
  3. Implement measures that remain workable in daily operations
  4. Document outcomes clearly and hand them over cleanly

Who this is for

  • SMBs that want traceable security without unnecessary complexity
  • Associations and smaller organisations with grown infrastructure
  • Teams without an in-house security department that need technical clarity

The goal

Not buzzword security on paper, but an environment that is better understood, better documented, and technically more robust than before.

If you want to discuss whether my approach fits your environment, feel free to get in touch.