Theft of information and research has helped to easily and freely access to many information and research, on the occurrence of many of the problems related to ownership of the publication or ownership of such research, the owners of these research to steal their work and information they reached the effort, after attributed to others, and has been abused in the use of some Information. Addiction and wasting time The use of online games can lead to addiction. Games are often designed to be addictive. Too much of the time leads to wasting time without producing anything useful, , Which leads to the consumption of most of the time and spent on the Internet. Exposure to hacking and viruses Many Internet users are exposed to hacking their personal accounts and stealing their information, exposing their privacy to risk and violation by some hackers, because the Internet works to connect all computers Making it easy for intruders to infiltrate and hack millions of devices, and attack them with viruses or other means of piracy. Depression and social isolation Many social networking sites can cause depression in many people, And to begin to compare what he owns with what they have, he starts feeling bad because of his sense of lack, which leads to depression and many psychological problems, and the isolation of long periods, and the habit of communicating with others through different communication sites, leads to isolation of the person from his real life and realism. Other disadvantages of the Internet There are many other disadvantages of the Internet, including: cheating: Some students use the Internet to cheat in their duties and study, by transferring research online, or searching for other people on the Internet to write reports or do homework. Lack of sleep: leads Light from the various electronic screens to deceive the mind, and the lack of attention to sleep time, leading to lack of adequate sleep time. Neglect of real goals: The great concern to follow up what is happening in social media to neglect the real goals in life, Instead of seeking the right job by developing useful skills, people, especially young people, tend to seek online stardom