Martin Fisher, director of information security for Atlanta-based Wellstar Health System, disputes a recommendation for segregated networks by Robert Hudock. Hudock, a lawyer and certified “ethical hacker” Hudock said the Veterans Administration segregated its EHR after suffering significant infections, and improved its security significantly. Fisher agreed that a segregated network would be useful for systems like the VA’s, but he said that is because they are not integrated. Segregation in an integrated network becomes meaningless because the network is “woven into everything we do,” Fisher said.”]