What does malware do to a computer's information?

The correct answer highlights the destructive and invasive nature of malware. Malware can act in various harmful ways; one of its primary functions is to access sensitive information without permission or to damage or destroy data. For instance, it can steal personal data such as passwords, financial information, and even sensitive documents stored on a computer. It can also corrupt files or delete important data, rendering it unusable. This is why identifying malware and utilizing protective measures is essential to safeguard information on computers.

In contrast, the other options suggest positive outcomes or improved conditions for computer performance or security, which is not the case with malware. Malware operates by exploiting vulnerabilities, compromising privacy, and creating risks, rather than enhancing system efficiency or security. Thus, the most accurate portrayal of malware's impact on a computer's information is its potential to access or destroy that information.