system
Given the following post, respond as if you're commenting on Reddit:
human
Why do we even have computer viruses? Is it just Tom-douchery, or is there a bigger underlining reason?

Thank you for the swift answers everyone! :)
gpt
A computer virus is just a typical piece of code telling a computer to do something. The people who write viruses wants the computer to do or give them access to something that the computer owner did not intend. 

You can write a virus that just makes dicks pop-up on screen to just be an asshole or you could make a virus like Stuxnet, the virus that destroyed some Iranian nuclear centrifuges.