Browse Definitions :
Definition

strong authentication

Contributor(s): Matthew Haughn

Strong authentication is  any method of verifying the identity of a user or device that is intrinsically stringent enough to ensure the security of the system it protects by withstanding any attacks it is likely to encounter.  

Strong authentication is a commonly-used term that is largely without a standardized definition. According to the European Central Bank (and the many organizations that follow its guidelines), strong authentication combines at least two mutually-independent factors so that the compromise of one method should not lead to the compromise of the second. Additionally, the authentication method must include one non-reusable element, which cannot easily be reproduced or stolen from the Internet.

The term strong authentication is often used synonymously with two-factor authentication (2FA) or multifactor authentication (MFA).  However, that usage is misleading because some types of very secure authentication rely on a single authentication factor.

In some cases, for example, systems using multiple challenge / response answers are considered strong authentication. However, such systems are based on multiple instances of the knowledge factor, rather than multiple independent factors and as such are single-factor authentication (SFA). Similarly, some types of biometric authentication are reliable enough when used alone that they are considered strong authentication.

This was last updated in February 2015

Next Steps

Expert David Strom reviews the benefits and features of Dell Defender multifactor authentication software.

Continue Reading About strong authentication

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

SearchSecurity

  • computer worm

    A computer worm is a type of malicious software program whose primary function is to infect other computers while remaining ...

  • Single Sign-On (SSO)

    Single sign-on (SSO) is a session and user authentication service that permits a user to use one set of login credentials (e.g., ...

  • Certified Information Systems Auditor (CISA)

    Certified Information Systems Auditor (CISA) is a certification issued by ISACA to people in charge of ensuring that an ...

SearchHealthIT

SearchDisasterRecovery

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

SearchStorage

Close