What is a security token?

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A security token refers to a physical or digital device used to gain access to a system or application, often as part of a multifactor authentication process. These tokens can come in various forms, including hardware tokens that generate unique codes or software tokens that are applications or services that provide similar functionalities. The primary purpose of a security token is to enhance security by requiring users to present something they possess, in addition to something they know (such as a password), to verify their identity. This reduces the risk of unauthorized access even if a password is compromised.

The other options don't accurately reflect the functionality of a security token. An online encryption method focuses on protecting data rather than facilitating access, tracking user data is not related to access control, and software used for creating passwords pertains to password management rather than the authentication offered by a security token.

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