Network Security.

Network Security.

1. What is encryption?

   • Encryption is a secret code .
   • A not obvious pattern to put a code in.
   • Used to be used in wars

2. How do you encrypt a message?

   • You can encrypt a message by creating a secret code that nobody will guess.

3. How do you decrypt a message?

   • You need a key to decrypt a message

4. When do we use encryption?

   • We use encryption to scramble passwords so the password isn't obvious

5. Anti-virus

   • Prevents viruses.
   • Anti-virus needs to be updated frequently to prevent nasty viruses
   • The consequences of not having anti-virus is that a virus could get into your computer.

6. Firewall

   • Blocks out threats.
   • Controls which programs can send and receive data packets
     • You need to control these to see what is affecting your PC
   • The consequences of not having a firewall is a data packet could come in and the data packet might have a virus in it and that would destroy work .

7. Passwords

   • If you are aged 12 or under your password should be 6 characters
     • If you are aged 12 or above then your password dhould be 8 characters