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Multi-factor authentication (MFA; two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence (or factors) to an authentication mechanism. MFA protects personal data —which may ...
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Proprietary freeware (some versions were under Apache License 2.0) Google Authenticator is a software-based authenticator by Google. It implements multi-factor authentication services using the time-based one-time password (TOTP; specified in RFC 6238) and HMAC-based one-time password (HOTP; specified in RFC 4226), for authenticating users of ...
Material flow analysis. Material flow analysis (MFA), also referred to as substance flow analysis (SFA), is an analytical method to quantify flows and stocks of materials or substances in a well-defined system. MFA is an important tool to study the bio-physical aspects of human activity on different spatial and temporal scales.
The RSA SecurID authentication mechanism consists of a "token"—either hardware (e.g. a key fob) or software (a soft token)—which is assigned to a computer user and which creates an authentication code at fixed intervals (usually 60 seconds) using a built-in clock and the card's factory-encoded almost random key (known as the "seed").
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A multi-factor authentication fatigue attack (also MFA fatigue attack or MFA bombing) is a computer security attack against multi-factor authentication that makes use of social engineering. [1][2][3] When MFA applications are configured to send push notifications to end users, an attacker can send a flood of login attempts in the hope that a ...
Command-line tool for generating OTP tokens. No No No Yes No No No No Yes Yes Yes Yes Unknown privacyIDEA Authenticator [17] For use with privacyIDEA Authentication Server, with a secure enrollment process. No No No No Yes Yes No No Yes Yes Yes No Unknown andOTP [18] (unmaintained) [19] Open-source app for Android 4.4+.