Network Security and the Need to Know

This updated guide examines Network Security and the Need to Know and organizes the essential facts, background, and practical takeaways in clear American English.

- Virus : A program that can search for other programs on the network device and infect them by copying into it a version of the virus. When these programs are executed, the attached virus is also activated to begin the next infection cycle. Unlike worms, viruses cannot infect computers without some help (user interaction). - Depth : The program can spread and infect itself over the Internet at a very fast speed. - Trojan Horse : Retrieved from an idiom, this is the term for a malicious program hidden in a certain cover (such as a game program), helping the mastermind have Can issue remote control commands.

"Social engineering" methods are often used to steal sensitive business information. This is the least powerful attack method as it is very effective in many cases. Sometimes an attacker can get what he wants, such as asking for password information to upgrade the system from technical support. Viruses, Trojans, worms and other threats can work together to create a big risk to the safety of a business. These threats often strike a predetermined target, surf the Internet and look for vulnerabilities in the victim's computer system to invade. Viruses and Trojans often require new user interaction to be infected, while computer worms do not need to; they are able to spread via e-mail to infect "less secure" computer systems in just a few hours, or even minutes. According to PestPartrol software security firm, the number of security threats has increased from 27,000 (2000) to 60,500 in 2003. * Solution to minimize the damage from attacks that take advantage of security holes, businesses need to seriously implement the detection process -> thoroughly resolve or prevent the vulnerability. Often the first step is to draft a security policy and inform the employees in the company. This policy should clearly define the rights and obligations of each person in contact with enterprise technical resources. Once there is a clear policy and regulation, the next step is to combine service measures to minimize or even eliminate many of the current security "headaches". These measures may include technical implementation to detect and prevent abuse and vandalism; train staff and apply thoroughly and smoothly the security policy set out. * Impact Internet security can directly affect the revenue and business situation of the business. A 2003 survey by CSI and the FBI Computer Intrusion Prevention Team showed that among 75% of businesses surveyed, they felt that they suffered financial losses from security incidents; 47% of enterprises said that they could accurately assess security losses; and 23% reported a loss of about 10 million USD per year due to assault acts. Another damage is very difficult to evaluate but extremely important for SMB, which is the period of system malfunction (downtime) and product damage due to slow response to security incidents. In many cases, businesses must temporarily remove important servers, desktop systems and chains related to security incidents. While facing potential damages, many small businesses have not focused on this risk. * Some work to do Threatening security and deploying technology to minimize them is always closely related. For successful security requires a step-by-step approach and a thorough processing process: - Conduct periodic reviews of security policies - Deploy security technology to provide secure connections, prevent threats, and manage identification and evaluation. at reasonable times and parts. - Repair and protect endpoints, servers and desktops from identified or unidentified threats. Be aware that there is in fact no single security technology that is perfect, but need to incorporate a variety of different measures and technologies. There are many basic security steps that do not require much money or effort. SMB can perform simple and easy steps to improve the security environment of your business. SMB may be a small target but not so they are less likely to be attacked, whereas businesses of this type need to protect themselves against risks by implementing preventive, common and easy-to-deploy activities..

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