Chapter 9

Chapter 9

1. Data

   • Data controller
     • A person who collects or keeps information about people
   • Data subject
     • A person who has data stored about themselves by other people or organisation
   • Data Protection Act (1998)
     • Provides rules to protect privacy of the individual
     • Private information cannot be sold or given to business
     • Gives you the right to look at your own data and change if necessary

2. 8 principles of data protection act

   • 1) Data must be obtained and kept within the law. The data controller must register with the data commissioner and must ask the data subject for permission.
   • 2) The data controller must only use the data for the purpose he asked for.
   • 3)The data must relevant and not excessive.(no more than necessary)
   • 4)The data must be accurate and up to date
   • 5)The data must not be kept longer than necessary.
   • 6)Data subject must be allowed to look at their own data
   • 7)Data must be kept secured, only people who are allowed to look at it are able to
   • 8)Data must be used within the European union unless another country has similar data protection laws to EU.

3. Storing data securely

   • Screen Savers
     • used to stop damage to a screen monitor to stop phosphor burn-in
     • now they are used more for entertainment purposes then security.
   • Encryption
     • puts data into secret code
     • To encrypt software you need to use specialist software that uses an algothrim, which is a set of rules which puts it into a code with a key to decipher it back into its original state
     • All characters can be encrypted
   • Virus Protection
     • A computer virus is a type of software program that copies itself onto system files or data on a computer and damages them
     • Antivirus protection is a software program is used to identify viruses or other forms of harmful software and then remove them.
   • Passwords
     • Passwords are basic defence against other users and also make sure the correct user is using the computer.
     • should be random, not related to anything and not written down
   • Firewalls
     • Firewalls are software that stops viruses from entering and spreading throughout the system.
     • stop users from accessing the system based on a set of rules.
     • The software checks data in the IP to make sure it doesn’t contain any virus or anything that can damage the computer.