Information Security Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing IT security and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

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  • H

    Honeynet Project

    The Honeynet Project is a non-profit volunteer organization dedicated to computer security research and information sharing.

  • honeypot (computing)

    A honeypot is a network-attached system set up as a decoy to lure cyberattackers and to detect, deflect or study hacking attempts in order to gain unauthorized access to information systems.

  • HSPD-7 (Homeland Security Presidential Directive No. 7)

    HSPD-7 (Homeland Security Presidential Directive No. 7) was a directive issued by U.S. President George W. Bush in December, 2003 that updated policies intended to protect the country from terrorist attacks. This directive superseded the earlier PDD-63 (Presidential Decision Directive No. 63) issued by President Clinton in May of 1998.

  • hybrid virus (multi-part or multipartite virus)

    A hybrid virus (sometimes called a multi-part or multipartite virus) is one that combines characteristics of more than one type to infect both program files and system sectors.

  • hybrid virus/worm

    A hybrid virus/worm is malicious code that combines characteristics of both those types of malware, typically featuring the virus' ability to alter program code with the worm's ability to reside in live memory and to propagate without any action on the part of the user.

  • I

    I-SPY Act -- Internet Spyware Prevention Act of 2005 (H.R. 744)

    The I-SPY Act, formally known as the Internet Spyware Prevention Act of 2005 (H.R. 744), is a bill in the U.S. Congress that would criminalize the unauthorized use of spyware, phishing, and other methods of using the Internet to obtain sensitive personal information without someone's knowledge and consent.

  • identity and access management (IAM)

    Identity and access management (IAM) is a framework for business processes that facilitates the management of electronic or digital identities.

  • identity chaos (password chaos)

    Identity chaos (sometimes called password chaos) is a situation in which users have multiple identities and passwords across a variety of networks, applications, computers and/or computing devices.

  • identity governance

    Identity governance is the policy-based centralized orchestration of user identity management and access control.

  • identity management (ID management)

    Identity management (ID management) is the organizational process for identifying, authenticating and authorizing individuals or groups of people to have access to applications, systems or networks by associating user rights and restrictions with established identities.

  • identity theft

    Identity theft, also known as identity fraud, is a crime in which an imposter obtains key pieces of personally identifiable information, such as Social Security or driver's license numbers, in order to impersonate someone else.

  • IGP (Interior Gateway Protocol)

    An IGP (Interior Gateway Protocol) is a protocol for exchanging routing information between gateways (hosts with routers) within an autonomous network (for example, a system of corporate local area networks).

  • ILOVEYOU virus

    The ILOVEYOU virus comes in an e-mail note with "I LOVE YOU" in the subject line and contains an attachment that, when opened, results in the message being re-sent to everyone in the recipient's Microsoft Outlook address book and, perhaps more seriously, the loss of every JPEG, MP3, and certain other files on the recipient's hard disk.

  • in the wild

    According to noted computer virus expert Paul Ducklin, in order for a virus to be considered in the wild, "it must be spreading as a result of normal day-to-day operations on and between the computers of unsuspecting users.

  • incident response

    Incident response is an organized approach to addressing and managing the aftermath of a security breach or cyberattack, also known as an IT incident, computer incident or security incident.

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