Case 2 Claire is worried about computer viruses spreading. Also, with the proliferation of network traffic and e-mail, worms have become a major concern in the computing community. She is interested in tracking the sources of the viruses and worms to stop the threat. Claire has discovered that ____ are notorious for using backdoors to steal passwords and credit card numbers.
A) Trojan horses
B) file viruses
C) retro viruses
D) worms

Question

Quizplus · Accepted Answer

Trojan horses are a type of malware that disguises itself as a legitimate program or software, but once installed on a computer, it can open a backdoor that allows hackers to gain unauthorized access to the system. This can lead to theft of sensitive information like passwords and credit card numbers. Therefore, Trojan horses are notorious for using backdoors to steal such information. While viruses and worms can also cause damage to computer systems and networks, they do not necessarily use backdoors to steal data. Retro viruses, on the other hand, are a theoretical concept and not a real type of virus.

Case 2 Claire Is Worried About Computer Viruses Spreading