Network Security Meaning is to describe the protection of computer networks and the resources connected to them. It is a broad term that refers to all aspects of protecting a network from internal and external threats. Network security is more than internet security; it refers to the protection of computer networks from various threats including but not limited to:
1– Malicious software
2– Disgruntled employees
3– Hackers, crackers, script kiddies, and vandals.
4– Viruses, worms, Trojan horses, adware, spyware and other malware.
5– Social engineering (the manipulation of people rather than computers).
6– Physical damage to computer hardware and media.
7– Interception or monitoring of network traffic.
What is Malicious software?
Malicious software, or malware, is any software used for malicious purposes. The term typically refers to software used for computer crime or computer sabotage. However, the term is sometimes applied to software that violates the security of a system (see malware). One of the first anti-virus programs, the Malware Defense System, was released in 1992.
A virus is a type of malicious software program. Further, that can replicate and spread from one computer to another, without requiring user intervention. When this replication succeeds, it can cause damage to the system. Also, by modifying files or otherwise corrupting its ability to function. In most cases, viruses are with the intent of stealing private data. And giving their creators unauthorized access to the affected machine.
What are Disgruntled employees?
A disgruntled employee, sometimes called a disgruntled ex-employee. An employee whose emotions have been aroused to such a state that they are willing to take harmful actions against their employer or an ex-employee who has done so. Such actions may include stealing of documents, sabotage of computer systems and physical damage to property. They also may include theft of intellectual property, including trade secrets or customer lists. Sometimes employees are laid off and then rehired as contract workers at lower wages, creating a financial incentive for the sabotage of their former employer’s business.
What are Hackers, crackers, script kiddies and vandals?
A hacker is someone who uses computers or networks in ways that they were not intended to be used or in ways that violate computer security policies. The term may also be applied to those who “hack” into computers for fun by discovering security holes and vulnerabilities that can be used to gain access to the system. A cracker is someone who breaks into a computer system with malicious intent. Crackers often exploit security holes in computer systems to gain unauthorized access. Script kiddies are people who use hacker software tools without necessarily understanding how they work. Vandalism is the act of defacing another person’s property without lawful authority. Internet vandalism refers to the use of the Internet (or any computer network) as a medium for perpetrating deliberate damage upon other persons or their property; it includes the practice of defacing Web sites by using e-mail spamming or flooding.
What are Viruses, worms, Trojan horses, adware and spyware?
A virus is a type of malicious software program that can replicate itself and spread from one computer to another, without requiring user intervention (hence it is a form of self-replicating software). When this replication succeeds, it can cause damage to the system by modifying files or otherwise corrupting its ability to function correctly. Computer viruses currently cause billions of dollars worth of economic damage every year (see spread of computer viruses). Although most computer viruses are harmless or relatively benign, some viruses such as Stuxnet have caused serious damage including destroying large amounts of physical infrastructure (see worm). A worm is a type of malicious software program that will execute programs on an infected computer without any further input from other users and send copies of itself over network connections.