Book
I wrote this book because I kept seeing how badly VPNs are misunderstood. Many people use them without knowing what is actually happening, where the limits are, and where false assumptions become dangerous.
That is why this is not a provider brochure, but an honest and technically grounded guide for people who want to understand what secure VPN usage really requires.
VPN – Secure on the Data Highway
A practical security book about VPNs, protocols, common misconceptions, real risks, hardening, and meaningful countermeasures. Written to be readable, without flattening the technical reality.
E-book
Digital edition for €9.99
Can be ordered directly via cart.
Print edition
Printed edition for €34.95
Also available directly via cart.
What this book is about
This book is not meant to impress. It is meant to create clarity. It explains not only how VPN technology works, but also how to spot false expectations, bad configurations, and dangerous oversimplifications.
What you will find inside
- clear foundations on VPNs, tunnelling, routing, and common usage scenarios
- technical context for OpenVPN, WireGuard, IPsec/IKEv2, and related topics
- real risks, common thinking errors, and frequent misconfigurations
- security guidance for private users, SMBs, and smaller organisations
- a clear distinction between real security and marketing promises
Who this book is for
- people who want to understand VPNs instead of just using them blindly
- admins and technical readers who want a structured understanding
- SMBs and associations that do not want to make security decisions in the dark
In short: not a shallow quick guide, but an honest technical book with practical relevance.