ernet compulsively because it so easily facilitates the reward response common to addictive behavior. "If they are lonely and need compassion, camaraderie or romance, it can be found immediately. If they are looking for sex or pornography, they need only to click a button. They can experience the thrill of gambling, playing interactive games from the comfort of their chairs. They can entertain fantasies by pretending to be other people, or engaging interactive, role-playing games. The reward received from these activities can manifest itself physically, so that the person begins to crave more of it." The effects lead to headaches, lack of concentration and tiredness. Addicts must not cut off access altogether but they should set time limits and limit Internet usage to a set number of hours each day. Robert Kraut Doctoral Psychologist says referring on the subject: "We have evidence that people who are online for long periods of time show negative changes in how much they talk to people in their family and how many friends and acquaintances they say they keep in contact with. They also report small but increased amounts of loneliness, stress and depression. What we do not know is exactly why. Being online takes up time, and it may be taking time away from sleep, social contact or even eating. Our negative results are understandable if people's interactions on the net are not as socially valuable as their other activities." Another considerable drawback of the Internet is that it is susceptible to hackers. Hackers are persons that have tremendous knowledge on the subject and use it to steal, cheat or misuse confidential or classified information for the sake of fun or profit. As the world increases its reliance on computer systems, we become more vulnerable to extremists who use computer technology as a weapon. It is called cyber-terrorism and research groups within the CIA and FBI say cyber-warfare has become one of the main threats to g...
