Zero Trust Networks: In Theory and In Practice

Zero Trust Networks: In Theory and In Practice

Presented at BSides Las Vegas 2017:

The world is changing, but our network security models are having trouble keeping up. In a time where remote work is regular and cloud mobility is paramount, the perimeter security model is showing its age -- badly.

We deal with VPN tunnel overhead and management. We spend millions on fault-tolerant perimeter firewalls. We carefully manage all entry and exit points on the network, yet still we see ever-worsening breaches year over year. The Zero Trust model aims to solve these problems.

Zero Trust networks are built with security at the forefront. No packet is trusted without cryptographic signatures. Policy is constructed using software and user identity rather than IP addresses. Physical location and network topology no longer matter. The Zero Trust model is very different, indeed.

In this talk, we'll discuss the philosophy and origin of the Zero Trust model, what it brings to the table, and how to think about building one.


Doug Barth

July 25, 2017