How do I start moving our legacy network architecture toward a strict Zero Trust model effectively?

All answers to this question.

Transitioning to this model is definitely a marathon, not a sprint. I recommend starting with "Identity" as your first pillar. You need to ensure that Multi-Factor Authentication (MFA) is non-negotiable for every single entry point. Once you have a handle on who is accessing the system, you can move toward micro-segmentation. This limits the "blast radius" if a breach occurs. In my experience back in 2023, trying to do everything at once leads to configuration errors that actually create more vulnerabilities. Focus on high-value assets first and gradually expand your policy engine.

   Answered 2025-03-16 by Cynthia Reynolds

Are you planning to use a specific vendor's software for the policy orchestration, or are you trying to build this using open-source tools?

   Answered 2025-03-18 by Jeffrey Hudson

• That’s a great point, Jeffrey. For a small team, I’d strongly suggest looking at integrated SASE providers. Building a custom broker from scratch requires a level of specialized expertise that most small departments just don't have. It’s better to pay for a managed solution that handles the automated encrypted tunnels and continuous posture checking for you, especially with the rise in sophisticated phishing.

     Commented 2025-03-19 by Gregory Marshall

Start by mapping your data flows. You can't protect what you don't know exists. Identifying your "Protect Surface" is the absolute first step before buying any new tools.

   Answered 2025-03-20 by Bradley Fischer

• I totally agree with Bradley. We spent months on tool selection only to realize we didn't even have an updated inventory of our legacy databases.

     Commented 2025-03-21 by Karen Lawson