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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D
Duo Security
Duo Security is a vendor of cloud-based two-factor authentication products.
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F
four-factor authentication (4FA)
Four-factor authentication (4FA) is the use of four types of identity-confirming credentials, typically categorized as knowledge, possession, inherence and location factors.