What is the difference between malware and spyware and virus?

United States
January 25, 2008 4:09pm CST
I know that these three are harmful to computers, but i would like how exactly they differ from each other and which causes a lot destruction to PC?
1 person likes this
1 response
26 Jan 08
Malware: This makes a port on your system to open and puts in listening mode so that the malware writer would get access into your system. Spyware: Send critical information only like passwords, account info etc. Virus: Mostly eating up resources on the computer and making it to work slow.