Internet security is a protection to your personal computer from any harmful and malicious spyware. There are different kind of software to protect your computer in order your important documents that store in your computer are protected.
Businesses are taking advantage of the Internet to expedite their securities trading. Now, securities can be traded and transferred thousands of miles overseas in seconds without the help of a broker. This raises questions about how much information the security issuer must disclose.
Important of Internet Security.
Internet security is important for many reasons. The main one being, most of us use the Internet for banking, purchasing products, and business. This means that we are putting our credit card numbers, names, telephone numbers and other personal, sensitive information on the Internet. Without Internet security, this information is open for hackers to access, view, and steal. Even if you never put personal information on the Internet, without security you are still prone to viruses, worms, trojans, spyware, and other malware.
How do I Secure my Wireless Internet?
Securing your wireless internet signal is easy. All you have to do is enable a WPA or WEP on your network. The best way to do this if you do not know anything about networking is to contact the company your internet is through, and have them send a technician out to help.
Wi-Fi (also spelled Wifi or WiFi) is a popular technology that allows an electronic device to exchange data wirelessly(using radio waves) over a computer network, including high-speed Internet connections. The Wi-Fi Alliance defines Wi-Fi as any “wireless local area network (WLAN) products that are based on the Institute of Electrical and Electronics Engineers’ (IEEE) However, since most modern WLANs are based on these standards, the term “Wi-Fi” is used in general English as a synonym for “WLAN”. Only Wi-Fi products that complete Wi-Fi Alliance interoperability certification testing successfully may use the “Wi-Fi CERTIFIED” trademark.
A device that can use Wi-Fi (such as a personal computer, video-game console, smartphone, digital camera, tablet or digital audio player) can connect to a network resource such as the Internet via a wireless network access point. Such an access point (or hotspot) has a range of about 20 meters (65 feet) indoors and a greater range outdoors. Hotspot coverage can comprise an area as small as a single room with walls that block radio waves or as large as many square miles — this is achieved by using multiple overlapping access points.
Wi-Fi can be less secure than wired connections (such as Ethernet) because an intruder does not need a physical connection. Web pages that use SSL are secure but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP, proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router’s password.The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks.
A Web server that supports any of the major security protocols, like SSL, that encrypt and decrypt messages to protect them against third party tampering. Making purchases from a secure Web server ensures that a user’s payment or personal information can be translated into a secret code that’s difficult to crack. Major security protocols include SSL, SHTTP, PCT, and IPSec.
What Is Network Security?
In answering the question What is network security?, your IT partner should explain that network security refers to any activities designed to protect your network. Specifically, these activities protect the usability, reliability, integrity, and safety of your network and data. Effective network security targets a variety of threats and stops them from entering or spreading on your network.
How Does Network Security Work?
To understand What is network security?, it helps to understand that no single solution protects you from a variety of threats. You need multiple layers of security. If one fails, others still stand. Network security is accomplished through hardware and software. The software must be constantly updated and managed to protect you from emerging threats. A network security system usually consists of many components. Ideally, all components work together, which minimizes maintenance and improves security. Network security components often include:
1Anti-virus and anti-spyware
2 Firewall, to block unauthorized access to your network
3 Intrusion prevention systems (IPS), to identify fast-spreading threats, such as zero-day or zero-hour attacks
4 Virtual Private Networks (VPNs), to provide secure remote access
Commonly, a computer user can be tricked or forced into downloading software onto a computer that is of malicious intent. Such programs are known as malware and come in many forms, such as viruses, Trojan horses, spyware, and worms. Malicious software is sometimes used to form botnets.
Viruses are programs that can replicate their structures or effects by infecting other files or structures on a computer. The common use of a virus is to take over a computer to steal data.
A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. Often, it uses a computer network to spread itself, relying on security failures on the target computer to access it. Unlike a computer virus, it does not need to attach itself to an existing program. Worms almost always cause at least some harm to the network, even if only by consuming bandwidth, whereas viruses almost always corrupt or modify files on a targeted computer.
A Trojan horse, or Trojan, is a non-self-replicating type of malware which gains privileged access to the operating system while appearing to perform a desirable function but instead drops a malicious payload, often including a backdoor allowing unauthorized access to the target’s computer. These backdoors tend to be invisible to average users. Trojans do not attempt to inject themselves into other files like a computer virus. Trojan horses may steal information, or harm their host computer systems.Trojans may use drive-by downloads or install via online games or internet-driven applications in order to reach target computers. The term is derived from the Trojan Horse story in Greek mythology because Trojan horses employ a form of “social engineering,” presenting themselves as harmless, useful gifts, in order to persuade victims to install them on their computers.
Spyware is a software that aids in gathering information about a person or organization without their knowledge and that may send such information to another entity without the consumer’s consent, or that asserts control over a computer without the consumer’s knowledge “Spyware” is mostly classified into four types: system monitors, trojans, adware, and tracking cookies. Spyware is mostly used for the purposes such as; tracking and storing internet users’ movements on the web; serving up pop-up ads to internet users. Whenever spyware is used for malicious purposes, its presence is typically hidden from the user and can be difficult to detect. Some spyware, such as keyloggers, may be installed by the owner of a shared, corporate, or public computer intentionally in order to monitor users.