Holistically, Zero Trust is often described as a strategy or a framework, not a product sold by specific vendors. This is true; Zero Trust is a new way of security thinking that permeates several areas, not just architecture or technology. However, there are practical implementations from vendors, like Zscaler, that have built their solutions around Zero Trust. Once deployed, this technology provides secure access for users, things, and workloads to public or private destinations based on Zero Trust principles.
When considering solutions based on a Zero Trust architecture, it is essential to understand how this market is described and categorized. The most common taxonomy is called Security Service Edge or SSE (defined by Gartner), an umbrella description for solutions offering Zero Trust architecture, among other functions.
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