Which of the following statements accurately describes spyware?

Spyware is a type of malicious software designed to monitor user activity and gather private information without the user's knowledge or consent. It can track activities such as browsing habits, keystrokes, and even capture sensitive data like login credentials and financial information. This can lead to serious privacy breaches and identity theft, making the understanding of spyware crucial for maintaining cybersecurity awareness.

The other statements do not accurately reflect the nature of spyware. For instance, while spyware may sometimes slow down a computer due to resource usage, this is not its primary function. Additionally, spyware can affect various devices, not just mobile ones; it can infiltrate computers, laptops, and other internet-connected devices. Moreover, the assertion that spyware deletes files is incorrect, as its primary purpose is to collect information rather than disrupt or modify the host system's data.