What is the primary function of a token in cybersecurity?

The primary function of a token in cybersecurity is to act as a device used to authenticate a user. Tokens can be either physical devices, such as key fobs or smart cards, or software-based tokens that are generated on a user's device or sent via a mobile application. These tokens typically generate one-time passwords (OTPs) or contain cryptographic information that verifies the user's identity when accessing secure systems or data.

The use of tokens enhances security by adding an extra layer beyond the traditional username and password combination. This multi-factor authentication approach helps to prevent unauthorized access, as possessing the token is necessary to complete the login process.

In contrast, other options such as types of malware attacks, methods to encrypt files, and firewall configurations represent different aspects of cybersecurity that do not directly relate to the function of a token. Tokens focus primarily on user verification and authentication, distinguishing them from those categories.