1. Cyber Attacks and the Global Economy
They disrupt the computer's operating system. ... Worms is software program unit which does not need a host to inflict damage. ... It can provide a backdoor for hackers to unleash viruses or worms on a computer system. The user may not even be aware that his or her computer has been infected by a Trojan horse. Semantic attacks do not affect the operating system or the memory of a computer directly. ...
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