Fake piece of software that looks useful but once installed into your computer can do damage.
Some are designed to by silly and change your desktop and be annoying as were others are
extremely harmful and can delete and alter files on your computer.They are known to create a ‘back door’ in your computer; so as malicious software can be placed into your computer or controlled by a malicious user. However they don’t self-replicate or reproduce through infecting other files.
A worm is considered to be a sub-type of a virus! It travels from computer to computer leaving traces but the key difference is that a worm requires no human action…