791What is a ’computer virus’?
792How does a computer virus typically spread?
793What is ’antivirus software’ used for?
794Which of these is a well-known antivirus software?
795What is a ’worm’ in computer security?
796What is a ’Trojan horse’ in computing?
797What is ’ransomware’?
798What is ’spyware’?
799What is ’adware’?
800What is the purpose of regularly updating antivirus software?
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