Security methods

Question 1

Shredding

Answer 1

• mechanical device, cuts papers into strips
• government, companies, individuals use these to destroy private documents
• enhances security for a business

Question 2

Privacy screens

Answer 2

• polarised sheets of plastic placed over a computer screen to stop visibility from any angle other than straight on
• business industry uses this to ensure people can’t view your computer screen. Reduces hacking, loss of data and snooping

Question 3

Radio Frequency Identification (RFID)

Answer 3

• small electronic devices made of a small chip and antenna. Carries up to 2000bytes of data
• provides a unique identification, needs to be scanned to retrieve info
• reduces cost of replacing keys, generates automated electronic access logs and limit access based on variable factors (specific timing of day in week)
• manages physical access to buildings

Question 4

Biometrics

Answer 4

• measures and analyses few human factors (fingerprint, retina/iris, palm prints)
• allow access to buildings and info held on computer systems

Question 5

Locks

Answer 5

• mechanisms for keeping a door fastened
• ensures no data is manipulated, stolen or purposely deleted in a room
• effective at isolating rooms with private info

Question 6

Antivirus

Answer 6

• program used to prevent, search, detect and remove viruses
• allows malware scanning of files as they’re being opened for reading and writing updates take place on a regular basis
• prevents cybercriminals from transmitting viruses and other harmful threats in order to steal sensitive info

Question 7

Encryption

Answer 7

• conversion of electronic data into cipher text, hard for unauthorised parties to understand
• used to retain privacy of digital data stored on computer systems
• data security, to read an encrypted file you must have a password to decrypt it

Question 8

Firewalls

Answer 8

• network security system designed to prevent unauthorised access to or from a private network
• filters packets to see if they meet specific criteria set by a series of rules then blocks or allows the data

Question 9

Anti Spyware

Answer 9

• detects and eliminates unwanted spyware programs
• malware installed on a computer without users knowledges in order to collect info
• key logger records what you type and sends it back to a cyber thief
• prevent unauthorised users from stealing passwords and etc

Question 10

Usernames/passwords and permissions

Answer 10

• username used to gain access to a computer system. Both P and U needed in multi user systems
• permissions are rights and privileges. These are access details given by users or network administrators that define access rights to files on a network

Question 11

Token

Answer 11

• small hardware device that the owner holds to authorise access to a network service. May be in form of smart card, or embedded in a key fob
• user has a PIN, which authorises them as the owner of that certain device. Device displays a number which uniquely identifies the user to the service, letting them log in. ID is changed very often (5mins or so)