Zero Trust Architecture

How is it different from previous approaches to IT security?

Describe the Zero Trust Model and its principles related to cyber security, and its efforts to increase wide-ranging security posture of a network. How is it different than other architectures like Defense in Depth?

-10 valid sources, 5 of them no more than 3 years old. This means at least 5 of the references must be newer than 3 years old.

-Properly cite quoted, derived or paraphrased works

-Do not include the Title, Abstract of Reference pages in the page total.