Telepathic Immunity is the ability of an individual to resist or repel mental attacks. However, this ability should be qualified since telepathic ability has various effects, i.e. attacks, possession, illusions, etc. Some individuals may be immune to telepathic attacks but not immune to possession or illusions. Telepathic immunity may be natural, artificial or through training or willpower. Natural immunity is basically due to the genetic make-up of the individual. Artificial immunity involves using external devices to become immune. Immunity through training or willpower are those who are not immune either by natural or artificial means but has developed by sheer mental strength a resistance to mental attacks, such as Batman and Superman.