Unit 3 Security

Unit 3 Security

1. Confidentialty

   • Protect
     • no unauthorised access
   • confidential
   • secret

2. Integrity

   • Keeping data or information secure from unauthorised modification. Like NHS keeping the statistics for obesity growth in the UK.

3. Avaliability

   • protecting a document
     • from unauthoried access

4. Virus and Malware

   • To protect a PC from malware and virus , many houses and buisness companys install Anti-Virus sofwatres to prevent Hackers from installing malwares , which would noramlly take up storage space and slow down the operating pcs , but also hackers could install a virus which could spread across the whole network exposing all data , to being teft or stolen.
     • As a result, if the compnay or user install Anti Virus software and keep it updated espisially then the companys software and network will be secure.

5. Firewalls

   • Monitor and filteer= incoming traffic
     • prevent aunauthroised data to flow insoide the network
       • cna notify a user.