The technology has changed dramatically increase such as smart cars, smartphones, appliances, vending machine, smart homes, and smart building. It is bringing many opportunities and benefits for a vast number of people. On the other hand, hackers are trying to use the technology to harm the government as well as the company on security and financial. To reduce these issues, the cybersecurity is going to help the United States in safety and to help other companies from financial lost by understanding the concepts, terms, a typical Technology (IT) infrastructure domain, describe or illustrate the weakest link in the security of an IT infrastructure lists, and recognize or apply the confidentiality, integrity, and available (CIA) to stop cyberattacks. In addition, the world needs those people who understand computer-system security and able to protect computers and network from ISIS, Terrorists, and criminals.