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biometric device

authenticates a person's identity by tanslating a personal characteristic, such as a fingerprint into digital code that is then compared with a digital code stored in a computer verifying a physical or behavioral characteristic


someone who accesses a computer or network illegally but has the intent of destroying data, stealing information, or other malicious action


someone who uses e-mail as a vehicle for extortion

denial of service attack

an assault whose purpose is to disrupt computer access to an internet service such as the web or email

DoS attack

An assault on a computer that is performed by hackers whose purpose is to disrupt access to the Web. DoS attack is short for denial of service attack


someone who accesses a computer or network illegally

hardware theft

is the act of stealing computer equipment

intrusion detection software

automatically analyzes all network traffic, assesses system vulnerabilities, identifies any unauthorized access (intrusions), and notifies network administrators of suspicious behavior patterns or system breaches, including violations of firewalls.

license agreement

is the right to use the software.


a private combination of characters associated with the user name that allows access to certain computer resources


destructive event or prank the program is intended to deliver

possessed object

any item that you must carry to gain access to a computer or facility

script kiddie

has the same intent as a cracker but does not have the technical skills and knowledge


Unsolicited e-mail message or newsgroup posting sent to many recipients or newsgroups at once.

system failure

prolonged malfunction of a computer that can cause loss of hardware, software, or data


a potentially damaging computer program that affects, or infects, a computer negatively by altering the way the computer works without the user's knowledge or permission.

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