Question

what is the difference between a worm and a spyware​

Answer 1

Worms:computer worm does not harm or corrupt any files but still they are much dangerous then virus. They are dangerous because they spread rapidly from one computer to another computer without the knowledge of the user and create unnecessary spaces, files, shortcuts’, etc.

Spyware :Spyware is a type of software which is installed on user computer without his/her knowledge. These types of software’s are used to collect any user information without his/her knowledge.Some examples of spyware are Pop Ups Ad, Unnecessary browser extensions, Key loggers, etc.

Answer 2

Worm-
#A worm is a software program that actively transmits itself over a network to infect other computers.
#A hacker can't install keylogger software.
Spyware-
#It is installed on your computer to steal information from your computer.
#Hacker may install keylogger software.