Network Security!

Network Security!

1. Firewall

   • This is used to stop data being sent out or received by the computer.
     • If we didn't have firewalls we would have everyone's data and people would be vulnerable because their data and private information would be for everyone to see.

2. Encryption

   • Encryption is used to scramble data being sent over a network so that it can't be read unless you have the "key/code" to decode it.
     • If we didn't use encryption, when we send out data to another computer if it was intercepted they would be able to read what we were sending out and possibly change it before it got to the other computer

3. Passwords

   • Passwords are needed to stop another person logging into your account.

4. Physical Security

   • Physical security can stop unwanted people from accessing the hardware. For example a lock or alarms.
     • If we didn't have physical security it would be easy to access the network and be able to pull all the plugs out of the system and make the whole network crash.

5. User Access Levels

   • Different users have different privileges.