Attempt to break a password by trying all possible words.

Software or hardware which records all key strokes on a computer system.

Computer programs which damage files and data spreads when infected programs are copied.

Malicious software which replicates itself and spreads between computer systems and over networks.

Malware which pretends to be a genuinely useful program to trick the user into using it

A technique used to authenticate remote users, such as online shopping businesses

Establishing a user's identity

Use of fingerprints, retina scans, or other body features as an authentication mechanism

Measurements taken from a biometric sample

The process of registering a user for a biometric system by taking an initial sample

Also called cracking, refers to gaining unauthorized access to computer systems

A method of bypassing security in a system, built in by the system designers

Technique used by criminals to alter DNS records and drive users to fake sites, to committing phishing.

Phishing attacks committed using text messages (SMS).

Technique used by spammers to detect if an email address is valid or not.

Use of fingerprints, retina scans, or other body features as an authentication mechanism.

Flooding a computer system with data so that it cannot respond to genuine users.

System of encoding plain text so that it cannot be understood with access to an encryption key.

Malware which pretends to be a genuinely useful program to trick the user into using it.

Computer which has been compromised by malware and is part of a botnet.