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Concept
Internet security
Summary
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.
Many methods are used to combat these threats, including encryption and ground-up engineering.
Malicious software comes in many forms, such as viruses, Trojan horses, spyware, and worms.
Malware, a portmanteau of malicious software, is any software used to disrupt computer operation, gather sensitive information, or gain access to private computer systems. Malware is defined by its malicious intent, acting against the requirements of the computer user, and does not include software that unintentionally causes harm due to some deficiency. The term badware applies to both malware and unintentionally harmful software.
A botnet is a network of computers that have been taken over by a robot or bot that performs large-scale malicious acts for its creator.
Computer viruses are programs that can replicate their structures or effects by infecting other files or structures on a computer. The typical purpose of a virus is to take over a computer to steal data.
Computer worms are programs that can replicate themselves throughout a computer network.
Ransomware is a type of malware that restricts access to the computer system that it infects, and demands a ransom in order for the restriction to be removed.
Scareware is a program of usually limited or no benefit, containing malicious payloads, that is sold via unethical marketing practices. The selling approach uses social engineering to cause shock, anxiety, or the perception of a threat, generally directed at an unsuspecting user.
Spyware refers to programs that surreptitiously monitor activity on a computer system and report that information to others without the user's consent.
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Related concepts (17)
Vulnerability (computing)
Vulnerabilities are flaws in a computer system that weaken the overall security of the device/system. Vulnerabilities can be weaknesses in either the hardware itself, or the software that runs on the hardware. Vulnerabilities can be exploited by a threat actor, such as an attacker, to cross privilege boundaries (i.e. perform unauthorized actions) within a computer system. To exploit a vulnerability, an attacker must have at least one applicable tool or technique that can connect to a system weakness.
Internet security
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.
Clickjacking
Clickjacking (classified as a user interface redress attack or UI redressing) is a malicious technique of tricking a user into clicking on something different from what the user perceives, thus potentially revealing confidential information or allowing others to take control of their computer while clicking on seemingly innocuous objects, including web pages. Clickjacking is an instance of the confused deputy problem, wherein a computer is tricked into misusing its authority.
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