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.

Images and files in the map