A typically small piece of software that is attached onto other programs
Usually a large program that infects every part of your computer
A single file that is downloaded and does not spread
It uses computer networks and security holes to replicate itself
It is an actual worm that can get inside a computer and ruin the hardware
A virus that looks like a worm and "eats" your software
A hacker will locate your IP address and target low security computers
The will take a picture of your computer and use that to access it later on
They will search for the highest security computer, and try to access it.
Computers that have not been updates
Computers with old software on it
Computers lacking in virus protection
Viruses can damage software.
Viruses can corrupt files in your computer and destroy important documents.
Viruses can infect important OS files that shut down computers.
Here's an interesting quiz for you.