Strong Authentication

strong authentication - Strong authentication, also called two-factor authentication, is defined as two out of the following three proofs:

   * something known, like a password,
   * something possessed, like your ATM card, and
   * something unique about your appearance or person, like a fingerprint.

Using strong authentication provides more protection for sensitive information than a simple username and password can provide. Strong authentication, especially when combined with other practices like mutual authentication and non-repudiation offers a strong assurance that financial transactions are conducted by two known and trusted parties.

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Source: RSA, 22 August 2011 08:50:05, http://www.rsa.com/glossary/