MALWARE

1. VIRUS

1.1. a malicious program designed to replicate itself and transfer to another computer & to the next..

2. WORM

2.1. a malicious program that transfers from one computer to another by any types of means.

3. TROJAN

3.1. a malicious program that disguises as a useful program but once downloaded or installed, leaves your PC unsafe and prone to hacker.

4. SPYWARE

4.1. a program that runs in the background without you knowing it. It has the ability to monitor what you are currently doing and typing through keylogging.

5. ADWARE

5.1. a program designed to send you advertisements,mostly as pop-ups.