1A: impact of software Flashcards
what are some issues with inappropriately developed/used software
- poorly developed software: could include bugs or intentional malware
- social networking: widespread concerns for cyber safety/privacy
what is the year 2000 problem
1960s ~ 1970s: storage was expensive, so 2 digits were used for storing years; the software using this feature crashed and had many incorrect calculations when the 2000s came along
malware meaning
malicious software designed to damage or perform unwanted actions on computer systems
examples of malware
viruses, worms, trojan horses and spyware
what is a virus
malware that replicates itself when executed, and performs malicious processing and duplicates itself; duplicates are passed via email/electronic communication
- commonly attached/embedded in legitimate software/files
how is virus different from other malware
the ability to replicate itself
what is a worm
type of virus which slows down a system; uses a security flaw in OS to install itself on hard drives; duplicates itself and takes over hard disk + RAM so other programs do not have space to run
what is a trojan horse
a type of malware that downloads onto a computer as a legitimate program
- performs unwanted processes when executed, like deleting/corrupting files
what are trojan horses used for
to install malware that enables other user/program to take over your computer; creates botnets
botnets + their purpose
zombie army: instructs all computers to perform malicious tasks; attacks websites, send spam messages
- provides cover for criminal operator cuz spam is from legitimate source
what is spyware
malware that enters a user’s computer and gathers data to send to third parties without consent
- can be for identity theft and allows criminal to gain access to bank details
what are broad items which rely on software
household appliances, all types of motorized transport, utilities, government authorities
definition of social networking site
an online, virtual community where people share their thoughts and activities with family, friends or those with similar interests
advantages of social networking sites
- allows instant messaging on live feeds
- twitter: can group messages by hashtags
- LinkedIn: business contacts networking site; business contacts which can be shared with others
- integration: twitter can be included in Facebook/LinkedIn
disadvantages of social networking
- private/personal info easily shared, and can lead to identity theft, stalking, bullying
- things posted accessible indefinitely
