ARTIFICIAL LIFE. “Computer viruses are the first and only form of artificial life to have had a measurable impact on society.”
https://books.google.com/books?id=8a6uC0BbyjAC&pg=PA130&lpg=PA130&dq=computer+viruses+as+artificial+life&source=bl&ots=Uh-Oksfh6f&sig=f8yHoGRadVGtO8pucwuImn5PLPo&hl=en&sa=X&ved=0ahUKEwjxloe0q47LAhUCMyYKHVyyBhYQ6AEIJjAF