What is spyware primarily designed to do?

Spyware is primarily designed to monitor user activity and relay information back to its creator. This type of malicious software operates covertly, often without the user's consent, and can track various activities such as browsing habits, login credentials, keystrokes, and other personal information. The information collected by spyware can then be used for various malicious purposes, such as identity theft, unauthorized data access, or targeted advertising.

In contrast, options related to encrypting data, strengthening network security, or reducing computer processing time do not align with the primary function of spyware. Encrypting data during transmission focuses on securing data from unauthorized access, while strengthening network security aims to protect systems from threats. Reducing processing time generally pertains to improving performance rather than monitoring or data collection. Each of these actions serves a different purpose than what spyware is designed to do.