Network security

Network security

1. Firewall

   • Protects against data flowing through to a system.
   • Helps to defend against unknown data coming into a system
   • It can stop people from connecting to your network and accessing your files

2. Encryption

   • An encryption will defend against files/data being accessed
   • Keeps computers/people from accessing data without having the encryption code
   • Encryption can stop pictures/documents from being accessed and stops others from seeing files
   • What could happen without encryption
     • Personal files could be seen by anyone with access to it which means that any private photos and or documents could be accessed by anyone

3. Passwords

   • A word/phrase used to protect against personal files being accessed
   • Only the user will know the password
   • These are the second defence from data being accessed
   • What would happen without passwords
     • Anyone could access personal data on a desktop/pc/mobile device etc.
     • This could lead to systems being tampered with and could mean that anyone could access it

4. Physical Security

   • Doors/cages for computers
     • This can provide additional security from access to data.
   • Anything that provides security that is not computer generated
   • Without physical security damage could be caused to the system as in the physical motherboards etc.
   • If there was no physical security then the systems/circuits could become damaged or could sustain a shut down from water etc.

5. User access levels

   • These are the specific groups of the levels of data a user can access
   • This gives users different amounts of information which can be altered by the owner of the data
   • These can say who can access what
   • What would happen without user access levels
     • Anyone could change settings on an document, meaning that the file could fall to pieces so to speak.