Which of the following software can also be used as a basic security measure?

Adware is a type of unwanted software that displays advertisements, often negatively impacting security and privacy.

Visual TimeAnalyzer is a time-tracking software for project management, not a security measure.

A screensaver configured to require a password upon waking can prevent unauthorized access to an unattended computer, serving as a basic physical security control. When the computer goes idle, the screensaver activates and locks the session, requiring user authentication to resume work.

A cookie is a small piece of data sent from a website and stored on the user's computer, used for tracking and personalization, not a security measure in itself.