Hacker
A person who tries to gain unauthorised access to a computer or network.
Malware
A software program that is designed to damage or disrupt a computer.
Virus
A software program that is designed to corrupt a computer and the files on it.
Spyware
A software program that collects user’s information through their internet connection. Detects key pressing.
Firewall
A system that protects unauthorised access to or from a computer work.
Anti-virus
Software used to detect a virus attack on computer. It will scan the computer’s hard disk for any virus attack and it will remove any if it finds.