prey -
a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence; "he fell prey to muggers"; "everyone was fair game"; "the target of a manhunt"
exploit,
work use or manipulate to one's advantage; "He exploit the new taxation system"; "She knows how to work the system"; "he works his parents for sympathy"
Prey -
prey on or hunt for; "These mammals predate certain eggs"