Answers

2016-03-12T10:11:39+05:30
By trojan horses
By worms
By email(spam)
0
2016-03-15T18:10:24+05:30
1.Internet.
2.Pendrive.
Infected and malicious file that are already in your pc.
New software, and the weird thing is that Virus can be created by our computer on its own.
Eg : Bootsector virus.
0