Question

___________ is one of the major sources to spread the virus by dishonest people.

Answer 1

Answer:

E-mail.

Explanation:

E-mail can be source which can spread invisible virus in any way. This is because, email is most frequent. While sending, there are lot of viruses that are invisible but, we can't identify them. To send safely, you should download/purchase a anti-virus programmer product. #beSafe.