What is viruses and worms

Viruses and Worms
Viruses and worms can be used to infect a system and modify a system to allow a hacker to
gain access. Many viruses and worms carry Trojans and backdoors. In this way a virus or
worm is a carrier and allows malicious code such as Trojans and backdoors to be transferred
from system to system much in the way that contact between people allows germs to spread.