Chapter 8 - Security and Ethics

the act of gaining illegal access to a computer system

the editing of program source code so it can be exploited/changed for a specific purpose

program code that can replicate/copy itself with the intention of deleting/corrupting data/files or causing the computer to malfunction

sending legitimate lookng emails to encourage uses to give out personal data

malicious code installed to redirect uses to a fake website

gathers data by monitoring keypresses on user’s keyboards

pieces of data that allow detection of web pages viewed by a user and store their preferences

this could be due to accidentally deleting a file or to a malicious attack from viruses or hacking

examines traffic between user’s computer and a public network - can help prevent viruses or hackers entering a user’s computer

allows data to be sent and received securely across a network

a protocol that is designed to ensure that no third party may eavesdrop or tamper with any message

a secret key which makes a message unreadable unless the recipient also has the decryption key

a form of encryption requiring both a public and private key

used to verify that data comes from a trusted source

an attempt at preventing users from accessing part of a network

a set of principles set out to regulate the use of computers

users have the freedom to run, copy, change or adopt free software

software which users can download free of charge

users are allowed to try out shareware for a trial period

lead to identity theft and loss or corruption of data

using strong passwords using firewalls

for malicious purposes (such as modifying legitimate software to do something like redirect a user to a fake website)

it is hard to do software engineers need to make the act of breaking into the software nearly impossible (make it difficult to identify back doors)

run slow crash cause some software to run abnormally