The U.S. National Institute of Standards and Technology (NIST) defines cross domain solutions as:
“A form of controlled interface (a boundary with a set of mechanisms that enforces the security policies and controls the flow of information between interconnected information systems) that provides the ability to manually and/or automatically access and/or transfer information between different security domains.”
I will cover what is Cross Domain, why it is important today, examples of its use and technologies adapted for its use in military and intelligence.