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Internet security

Definitions for common terms and phrases related to security threats, vulnerabilities, and technology.

Contributors in Internet security

Internet security

Port scanning

Internet; Internet security

A hacking technique used to cheque TCP/IP ports to reveal which services are available for exploitation, and to determine the operating system of a particular computer.

Spear phishing

Internet; Internet security

An email spoofing attack on a specific organisation with the goal of acquiring sensitive information, such as user names and passwords. The attacks normally target those in positions of power who ...

Smash and grab

Internet; Internet security

This is a cyber-attack where the perpetrator attempts to access as much information as possible before being discovered.

Anti-replay protocol

Internet; Internet security

The anti-replay protocol is part of the Internet Engineering Task Force (IETF) Internet Protocol Security (IPSec) standard. Anti-replay ensures IP packet-level security by making it impossible for a ...

Browser hijacker

Internet; Internet security

A browser hijacker (sometimes called hijackware) is a type of malware programme that alters your computer's browser settings so that you are redirected to Web sites that you had no intention of ...

Denial of service (DOS)

Internet; Internet security

This attack targets a computer, server, or network and is either an intentional or accidental byproduct of instruction code that is either launched from a separate network or Internet-connected ...

Phishing

Internet; Internet security

A method of fraudulently obtaining personal information, such as passwords, Social Security numbers, and credit card details by sending spoofed emails that look like they are sent from trusted ...

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