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Multi-factor authentication (MFA) is a security mechanism in which individuals are authenticated through more than one required security and validation procedure. MFA is built from a combination of physical, logical and biometric validation techniques used to secure a facility, product or service.
MFA is implemented in an environment where an individual's authentication and validation is the highest priority. Examples include a nuclear power plant or a bank’s data warehouse.
To gain access to a secured location or system, MFA typically requires three different security mechanism layers and formats, as follows:
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