Two Factor Authentication (2FA)

Two-factor authentication (2FA) is a widely used security mechanism that requires two separate, distinct forms of identification to access secured data. The first element is usually a secure password set by the user and the second element regularly involves a pin code sent to the user’s smartphone or e-Mail.

There are also 2FA security mechanisms that rely on biometrics using the user’s fingerprint, retina or face.

See also: Software Wallet, Hardware Wallet.