What is the function of spyware?

The primary function of spyware is to track and monitor user internet activities. This type of malicious software is designed to gather information about a person or organization without their consent. It can collect data such as browsing habits, login credentials, and sensitive information, which can then be sent back to the software creator or third parties. By doing so, spyware can infringe on user privacy and security, often leading to unwanted advertisements, identity theft, or other malicious consequences.

In contrast, the other options focus on protective or optimizing functions that do not align with the nature of spyware. For instance, protecting against malware, creating malware-free software, or optimizing computer performance are all positive actions, whereas spyware operates covertly with the intent of surveillance and data collection.