Keeping data safe Flashcards
what is a backup?
a copy of a file that contains data and makes sure that the work is not lost
How can you backup your work?
save the work every few minutes
use passwords to protect data
keep a copy of the work in different locations
what do businesses use to backup their files?
tape drives with magnetic tape
tapes are used in rotation - ‘grandfather’,’father’, ‘son’ backup schemes are used
what is an archive?
a copy of data that is stored separately for permanent safekeeping
archive are generally used for for data that is not currently in use
what are the differences between backups and archive
data in a backup file is in current use, data in archive is not
Backups are made at frequent intervals, archives are made at loner intervals
backups can be used for disaster recovery, archives are of little use in disaster recovery
Why are paper documents difficult to steal compared to electronic?
paper is bulky, electronic are small and can be quickly and easily copied
How can data be misused?
- gossiping with others about it
- selling contact details to advertising companies
- using other peoples data to obtain money
What may criminals use other peoples data for?
- obtain a bank card or credit card
- use card to buy items or services
What helps reduce card fraud?
the ‘chip and pin’ systems
What is identify theft?
someone using the details of another person to pretend to be them
thefts will buy items or services
How can you protect your data?
- hide key buttons when entering PIN
- keep computers in secure room
- unique password and set different passwords for different things
Where should you store your electronics that contain important data?
in a secure room with lockable doors and windows
How do you keep a secure PIN/password?
- not be written down anywhere
- changed regularly
- be different for every account
What is encryption?
encryption scrambles data so that it cannot be understood unless it is unscrambled.
What is decryption?
a decryption key is needed to unscramble the data from an encryption format
What is hacking?
an act of gaining, or attempting to gain access to computer data or systems without the required password or access rights
What is key logging?
a software that records the keys pressed to access data or computer systems
The recordings are transmitted to other people who may then use them to access the data or system
What is malware?
any computer program that enters another computer system without the owners consent
it is designed to harm the computer
What are the 5 types of malware?
virus worms trojan horses spyware adware
what is a virus?
a software/code that copies itself, transmits itself to other computers without the users knowledge.
Can alter or delete data in files
what are worms?
program that copy themselves and use networks to spread without external help
what are Trojan horses?
a software application that seems to preform a useful task or job but may allow unauthorized access
what is spyware?
collects information without a users knowledge or consent
what is adware?
automatically downloaded and installed to advertise or to direct a user to advertising material
