Where do most computer viruses originate from?

Most computer viruses originate from links on malicious websites and email attachments because these sources provide attackers with easy means to distribute malware. When users click on these links, they may inadvertently download harmful software onto their devices. Similarly, email attachments can contain viruses disguised as legitimate files. Once the user opens these attachments, the malware can execute and start affecting the system.

By focusing on these delivery methods, attackers exploit human behavior, as many users may not be cautious about clicking on unknown links or downloading files from emails, especially if they appear to be from a trusted source. This vulnerability makes these channels highly effective for spreading viruses, thus making them the predominant sources of computer virus attacks.

While other options may present some risk and contribute to the spread of malware, the high volumes of users interacting with emails and the web make links and attachments the most significant threat vectors for computer viruses.