What term describes something that is not concealed or secret?

The term that describes something that is not concealed or secret is "overt." This term is often used to refer to actions, behaviors, or information that are open and transparent, readily observable, and not hidden from view. In a security context, for instance, overt actions are those that are done openly and can be easily perceived or monitored, making them vital for accountability and trust.

In contrast, the other terms imply some level of concealment or secrecy. "Covert" refers specifically to operations or actions that are intended to be hidden or disguised. "Hidden" suggests that something is deliberately not visible or inaccessible, while "obscured" indicates that something is not clear or is made difficult to understand. Understanding these distinctions helps clarify the concept of visibility and transparency in various contexts, especially in security practices where knowing the difference between overt and covert actions can be crucial.