2025/2026
A _____ is a malicious-logic program that hides within or looks like a legitimate program and
usually is triggered by a certain condition or action. - Answers Trojan horse
To help reduce the chance of _____, physical controls such as locked doors and cables usually
are adequate to protect equipment. - Answers hardware theft
Examples of biometric devices and systems include all of the following except ____ - Answers
personal identification numbers and password systems
Some viruses are hidden in _____, which are instructions saved in an application such as a word
processing or spreadsheet program. - Answers macros
Like a virus or worm, a Trojan horse replicates itself to other computers. - Answers false
Today, the most common way computers become infected with viruses, worms, and Trojan
horses is through users opening infected e-mail attachments - Answers true
Computer users never should update their antivirus program's virus signature files. - Answers
false
A(n) ________ is someone who tries to access a computer or network illegally. (one word) -
Answers hacker
Many Web sites, like that in the accompanying figure, require a user to enter a(n) _________,
which is a private combination of characters associated with a user name that allows access to
certain computer resources. (one word) - Answers password
A computer _______ is a potentially damaging computer program that infects a computer and
negatively affects the way the computer works without the user's knowledge or permission.
(one word) - Answers virus
Methods that guarantee a computer or network is safe from computer viruses, worms, and
Trojan horses exist. - Answers false
Any illegal act involving a computer generally is referred to as a computer crime. - Answers true
Computer viruses, worms, and Trojan horses deliver their payload on a computer when a user
_____. - Answers all of the above
A _____ is a program that copies itself repeatedly in memory or on a network, using up resources
and possibly shutting down the computer or network. - Answers worm
A(n) ______ protects a computer against viruses by identifying and removing any computer
viruses found in memory, on storage media, or on incoming files. (two words) - Answers