Which of the following accurately describes malware infections?

The statement that malware infections are caused by exploitation of software, messaging, and media is correct because malware can enter systems through various vectors beyond just one specific method or medium. Malware can indeed be introduced through a range of avenues including email attachments, which are often cited as a common source of malware, but not the only source. Other ways malware can infect a system include through malicious downloads, unsecured software, exploit kits that take advantage of vulnerabilities in applications, via social engineering tactics in messaging (like chat apps), or through compromised media such as USB flash drives.

This multifaceted approach to malware infections underscores the importance of comprehensive cybersecurity measures, as relying solely on one method of protection (like filtering email attachments) would leave systems vulnerable to other forms of attacks.