Security begins with control – and Linux provides the ideal foundation for this. In the world of open source software, IT security is not a black box promise, but a transparent process. Tools like Kali Linux enable in-depth security analyses and penetration tests that can identify vulnerabilities early on. At the same time, a well-thought-out firewall configuration, such as with iptables or nftables, ensures precise network control. Mechanisms like SELinux allow fine-grained access control directly in the kernel, thus creating an additional security layer beyond conventional permissions. GnuPG is a proven tool for protecting sensitive data – reliable for encryption and signatures, both for communication and archiving.

Linux-based security is not an add-on module, but is deeply embedded in the system – open, transparent, and consistent.