Unit 3

Unit 3

1. Tiered levels of access

2. INTEGRITY

   • protect it from unauthorised modification a person who can not be trusted has no integrity, you can not trust them. Data that has been changed does not have integrity, you can not trust it.

3. Viruses

   • malware (malicious)
   • spyware
   • Trojan
     • because you trusted it into your PC

4. Protecting data

   • Firewalls
   • anti-virus
   • anti-malware
   • Latest OS

5. Archiving

   • Networks often have to store a lot of data. A good archiving strategy takes old, non-essential data and puts it somewhere safe. An archiving policy will help decide when to move data, where it should be kept, and how to get it back if needed.

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