describe the ways a computer virus spreads
Answers
Viruses can be spread through email and text message attachments, Internet file downloads, and social media scam links. Your mobile devices and smartphones can become infected with mobile viruses through shady app downloads
The computer virus spreads via self copying. As soon as the virus enters the system, it copies itself to a number of locations which is very difficult for the user to find it.
The virus may enter the system through a number of ways such as it may enter through any mail, thorough any link, through any attachments or via any detected CD/DVD/PEN DRIVE/CORD/WIRE or even through bluetooth.
Thus to save system from these viruses, one should only click anything which is from a trustworthy source and user should check whether while sharing anything the other system should not have any virus already or the sharing cable isn't corrupted.