Overview of Internet Security
As of 1996, the Internet connected an estimated 13 million computers in 195 countries on every continent, even Antarctica (1). The Internet is not a single network, but a worldwide collection of loosely connected networks that are accessible by individual computer hosts in a variety of ways, including gateways, routers, dial-up connections, and Internet service providers. The Internet is easily accessible to anyone with a computer and a network connection. Individuals and organizations worldwide can reach any point on the network without regard to national or geographic boundaries or time of day.
However, along with the convenience and easy access to information come new risks. Among them are the risks that
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Security is strong when the means of authentication cannot later be refuted - the user cannot later deny that he or she performed the activity. This is known as nonrepudiation.
Why Care About Security?
It is remarkably easy to gain unauthorized access to information in an insecure networked environment, and it is hard to catch the intruders. Even if users have nothing stored on their computer that they consider important, that computer can be a "weak link", allowing unauthorized access to the organization 's systems and information.
Seemingly innocuous information can expose a computer system to compromise. Information that intruders find useful includes which hardware and software are being used, system configuration, type of network connections, phone numbers, and access and authentication procedures. Security-related information can enable unauthorized individuals to get access to important files and programs, thus compromising the security of the system. Examples of important information are passwords, access control files and keys, personnel information, and encryption algorithms.
Judging from CERT® Coordination Center (CERT/CC) data and the computer abuse reported in the media, no one on the Internet is immune. Those affected include banks and financial companies, insurance companies, brokerage houses, consultants, government contractors, government agencies, hospitals and medical laboratories, network service providers,
The Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP).
The Internet is, quite literally, a network of networks. It is comprised of ten thousands of interconnected networks spanning the globe. The computers that form the Internet range from huge mainframes in research establishments to modest PCs in people's homes and offices. Despite the recent hype, the Internet is not a new phenomenon. Its roots lie in a collection of computers that were linked together in the 1970s to form the US Department of Defense's communications systems. Fearing the consequences of nuclear attack, there was no central computer holding vast amounts of data, rather the information was dispersed across thousands of machines. A set of rules, of protocols, known as TCP/IP was
The Internet is the global way of interconnected computer interfaces that use the Internet protocol suite (TCP/IP) to link devices worldwide. It is an interface of networks that consists of individual, civic, academic, marketing, and government tracks of local to global scope, joined by a broad collection of electronic, wireless, and optical networking technologies. The Internet has changed continuation upside down. It was no longer a state-controlled outline, although the extensive computer network in the world including across 50,000 sub-networks, 4 million systems, and 70 million users. The Internet supports numerous network services, most prominently mobile apps such as social media apps,Internet telephony, the World Wide Web, multiplayer online games,electronic mail, and file sharing services. The internet is essentially a web
4. Security Awareness: A large percentage of successful attacks do not necessarily exploit technical vulnerabilities. Instead they rely on social engineering and people’s willingness to trust others. There are two extremes: either employees in an organization totally mistrust each other to such an extent that the sharing of data or information is nil; or, at the other end of the scale, you have total trust between all employees. In organizations neither approach is desirable. There has to be an element of trust throughout an organization but checks and balances are just as
Some of the risks of internet security are virus, worms, spyware, adware, spam and phishing. Virus is a program designed to copy itself and spread, it usually attaching itself to applications. It can be spread by downloading files, exchanging CD/DVDs and USB sticks, copying files from servers, or by opening infected email attachments. It could destroy your computer. Worm can be injected into a network by any types of means, like a USB stick or an email attachment. Email worm tends to send itself to all email addresses it finds on the infected
Although the Internet is demarcated as a global causation of separate networks by the academic world, confidential parties, industry and even the government. In the beginning, the internet was provided to help interconnect workrooms (labs) that took part in government research and so ever since the year 1994 it has grew to serve millions of people in each and every part of the world.
It should not be a surprise that the biggest vulnerability in Cybersecurity is the user (Goldman, 2010). The vulnerabilities presented by the user fall into two general categories: (1) accidental and (2) malicious. Vulnerabilities are important to those that are trying to perform unauthorized actions on an information system. For this paper, the term information system is being used generically to be anything from a home computer to a global enterprise encompassing numerous servers and storage systems. These unauthorized actions are threats to the information system. While not all vulnerabilities create threats, even a single vulnerability puts the information system at risk.
The third security issue involves poorly trained or novice employees. These employees are more likely to fall victim to social engineering or phishing schemes that can compromise your network. They are also more likely to make unintentionally make mistakes that can delete or corrupt the data stored on your network (Damiani, Ardagna, Zavatarelli, Rekleitis, & Marinos, 2016).
A recent survey of security breaches at Fortune 500 companies showed that breaches in information security could result in annual financial losses of up to $24 billion. With that said, 90% of large corporations have found one or more breaches in their computer security and even worse, 70% of those detected breaches were considered severe, many resulting in proprietary information theft and financial fraud. Hackers can use several different paths through any application to harm the business. If the companies secure host and network-level entry points, focus of attacks usually shifts to the public interfaces.
This IDC study examines the worldwide network security market, including firewall, UTM, IDP, and VPN solutions, from 2011 to 2016. It provides vendor revenue shares and market sizing for 2011 as well as market growth forecasts for 2012–2016.
Availability: It is significant to make sure that the information concerned is readily available to the certified viewer at all times. Some kinds of security attack challenge to reject access to the suitable user, either for the sake of troubling them, or because there is various secondary effect (Perrin, 2008). For example, by breaking the web site for a specific search engine, a rival may turn into more popular.
And Limit the people who can access it as it can also lead to loss of files. Authentication is a main requirement for websites. It means asking people to prove their identity. The most common ways of authentication are passwords and digital signatures.
There has been colossal increment in the field of data innovation in the recent decades. In the realm of today just about all records can be effortlessly gotten to online through a home machine Anybody can transfer any report or pictures from anyplace on the planet and make that accessible to anybody perusing the web. Numerous individuals accept these have profits while others accept this an intrusion of security
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries a vast range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail.
Internet is a global network, connecting thousands of host servers worldwide. The United States Department of Defense established it in the beginning of the 1960¡¯s. Today, there are now 10 to 20 million people using an Internet comprised of more than 30,000 networks spread out over 78 nations all over the world.