Infographic: Five Most Catastrophic Viruses of All Time

Inforaphic created by Symantec Norton

Constant evolution

In the past, viruses and other kinds of malware would spread via spam email, booby-trapped websites which had been infected or malicious pop-up adverts. While all these are still common today, modern examples of malware causing damage have become more sophisticated, involving things like turning millions of PCs into miners for Bitcoins.

Viruses created today can be hard to both stop spreading and shift because of certain things like widespread use of wireless connections. However, the way in which malware is dealt with has improved, helped in no small part by the development of anti-malware software. Nevertheless, viruses, worms and Trojans are as dangerous as they have ever been.

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