Is a process to authenticate users on which requires the presentation of two or more authentication factors. For example, a user introduces a password in a system, the system sends a code, or calls to the user cell phone, the user finally authenticates by introducing the code received.
Reduces drastically the incidence of online identity theft, phishing expeditions, and other online fraud, because the victim's password would no longer be enough to give access -- but may be vulnerable to other attacks.
Reduces drastically the incidence of online identity theft, phishing expeditions, and other online fraud, because the victim's password would no longer be enough to give access -- but may be vulnerable to other attacks.
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- Wikipedia: Multi-factor Authentication Describes the approach to authentication which requires the presentation of two or more factors.
- About.com: What is Two-Factor Authentication? Describes the basic concepts of the authentication method, and the components: what you know, what you have, who you are.
- Computerworld: QuickStudy: Authentication Explains the concepts of answering the question "How do I know you're who you say you are?".
- Two-Factor Authentication Proof of concept. Tutorial using an image as the component "what you have".
- What is Two-Factor Authentication? Describes the factors used to grant the user access to the system.
- Tech Republic: Implementing Multi-factor Authentication: What To Consider To take into account when using them in a multi-factor authentication system.
- VenturBeat: Two-factor Authentication is a False Sense of Security Guest post from a user's point of view, analyzing the usability and security of TFA.
- MSDN: Strong User Authentication on the Web Aims to distill a comprehensive view of strong user authentication by examining its concepts, implementation approaches, and challenges/additional concerns at the architectural level.
- Two-factor Authentication Analyzing secure methods from the perspective of governments.
- IMB: Multi-Security Mechanisms With Multifactor Authentications Approach for designing and implementing a multi-security mechanism with multi factor authentication for AIX and UNIX systems.
- LVN: Google Authenticator for Multi-Factor Authentication Describes the Open Source project, client and server software implementation.