IntroductionThis is the information age. There are financial and corporate information, research and analysis, trends led trend and military intelligence. Information classified as confidential, sensitive and critical. There are information extraction tools and automated tools. There are management solutions, such as content management, knowledge management and document management, for managing the collected information. There are different mechanisms for storing information. Finally, information security, there are tools and techniques. In this article, we need to discuss three important types of security information, such as security information from hackers, during transit, to ensure that the information and protection of information stored in the system may be lost or stolen. Finally, a brief overview of wireless security has been described here. The Internet has become the information highway. The evolution of the Internet and related technologies has allowed businesses to communicate in new ways with all types of people and strategic organizations. Over the years, the distinctive features of the Internet connection have increased. As needs evolve, the more powerful the humanity service encountered, the faster the connections, and the more flexibility it is possible to meet the need for. Initially, the service, such as simple POP3-based email and web access, is the extent of an Internet connection. Today we have site-to-site Virtual Private Network (VPN), VPN for customers and home users, streaming media, web-based training, wonderful Internet applications, e-commerce and a business-to-business extranet. Therefore, the development of the Internet to meet the needs of a variety of advanced human societies. On the domestic side, in...... middle of paper ...... programs and operating systems (e.g. Windows, Mac, Linux) up to date with the latest program updates. Enable automatic updates to avoid potential attacks on the elderly.)ConclusionFocus on what is happening in the world, you need to understand the importance of information security, which is one thing, the need for security requirements and security-related tools and technologies. To succeed in the highly competitive e-commerce market, businesses must fully understand Internet security threats, take steps to overcome their technological advantage, and earn customer trust. For businesses that are serious about an e-commerce solution, it is necessary to implement a comprehensive e-commerce trust foundation. PKI encryption and digital signature technology, the Secure Sockets Layer (SSL) digital certificate provides the authentication, data integrity and confidentiality needed for e-commerce applications..