Understanding Zero Trust Network Architecture

Zero Trust network architecture shifts the paradigm from perimeter-based security to a model that assumes threats exist both outside and inside the network. In a traditional model, there is an assumption of trust once access is granted inside the network; however, Zero Trust advocates for skepticism and verification of all entities, using the principle of 'trust no one'. This approach emphasizes the importance of explicit security measures rather than implicit trust, ensuring that communication within the network requires strict authorization. An analogy likening this to an apartment building highlights that even with a secure entrance, individual apartment doors must remain locked to maintain security.