With so many definitions of 'Zero Trust' out there, it's often unclear what it references. What do you think Zero Trust means? What does it encompass?

Starting with zero access and stepping back from their as access/privilege is warranted, bit by bit.

Zero trust in practice is that there is default no access and on a per task basis trust is granted to the level that is needed to complete that task

Zero Trust to means no one or no equipment is trusted whether inside or outside your environment so every device has to be authenticated. So, you  need technology that enables you to enforce policy rules and authentication.

ZTA refers to building Identity and Access Management (IAM) in the system which allows classify the user's based on their roles, policies, and permissions they have. This has been seamlessly implemented by infrastructure providers and we should be considering those implementations as the example when we wish to implement the IAM across our systems, including internal as well as external.

Zero trust means that until you can verify, there is no access to or availability of resources.