Glossary Term

Knowledge-based Authentication

More About Plurilock

PDF

White Paper: Advanced Authentication

The state of authentication today—and why you need Plurilock products.
PDF

Plurilock Quad Chart

Quick, visual summaries of Plurilock value, use cases, architecture, and typical clients.
PDF

2019 Authentication Guide

Summary of authentication recommendations from major standards bodies, plus Plurilock’s own recommendations.
PDF

Behavioral Biometrics Guide

The definitive guide to behavioral biometrics, a core Plurilock technology.

Knowledge-based Authentication, or KBA, is a method of authentication in which a user proves his or her identity by providing information that only he or she should know. Two types of KBA are widely used. Static KBA, also known as "shared secret" authentication, refers to authentication in which the question and answer are known in advance by both the system and the authenticating user. Passwords and "secret questions" are examples of static KBA.¶Dynamic KBA refers to authentication in which the questions asked by the system are not known beforehand to the authenticating user. Dynamic KBA typically draws on one or many public or private databases of commercial or biographical data, and asks for a combination of personal historical facts (former residences, types of automobiles owned, former employers, and so on) that only the correct user is likely to know.¶In practice, static KBA is considered to be a very weak form of authentication, as shared secrets are easily lost or stolen, particularly when always provided in the same way at every login. Dynamic KBA may or may not be somewhat stronger, with relative strength depending on the database(s) from which questions are drawn and their status as publicly available data or non-public private data.¶Dynamic KBA, however, also represents both a considerable privacy intrusion and considerable privacy risk in most cases, paritcularly when "more secure" private data is requested from authenticating users.

KBA

Stay informed. Join our low-volume list for news and updates.

PLURILOCK IS THE LEADER IN ADVANCED AUTHENTICATION

Plurilock is the leader in advanced, risk-based authentication. We provide invisible, device-free MFA for corporate endpoints, Citrix sessions, cloud applications, and their users in finance, healthcare, education, and SaaS.

Follow

        

Contact Plurilock

Have a question or comment?