An attacker exploits application flaws to obtain data and credentials.

A (Establish visibility and behavior modeling):After discovering applications, Zero Trust design requires baseline visibility into traffic flows, system behavior, and interaction patterns. This modeling allows for the design of effective microsegmentation and policy enforcement.

Other options explained:

B: Policy enforcement comes after visibility and modeling.

C: Health assessment is a continuous activity but not the next step.

D: Trust assessment is part of the initial Zero Trust design, not specifically after discovery.