Michael Lewis' podcast had an episode recently where the Athena Health people related a (self-promotional) anecdote that, after they had essentially reverse-eng

Michael Lewis' podcast had an episode recently where the Athena Health people related a (self-promotional) anecdote that, after they had essentially reverse-engineered the insurers' medical billing systems and were marketing it as software to providers, a major insurance company called them up and asked to license information about their own billing system because their internal systems were too complicated to understand.