Zero-trust is not a product, but a way of thinking about design and architecture. Cisco and Microsoft are used as the technology vendors, but the steps and information are equally applicable to other technology vendors.
Tom Madsen has 20+ years of experience in cybersecurity behind him, across many different industry segments, like finance, medical, and systems development in a secure manner. He is the author of many articles for a local Danish online magazine and is a regular writer for www.cybersecuritry-magazine.com. He has authored two other books: "The Art of War Fort Cyber Security", published by Springer, and "Security Architecture – How and Why", published by River Publishers.