Network Security

Network Security

1. Physical security

   • This stops unauthorized users from intruding

2. Encryption

   • This is when information or data is turned into code
   • Cipher
     • A cipher is a way of scrambling/encrypting data
   • A message is encrypted by coding the words using numbers (cipher)
   • A message is decrypted by using a key
   • encryption is used when messages are being sent

3. Antivirus

   • This protects your system from virus

4. Firewall

   • This protects a network or system from intruders

5. Passwords

   • A password is a lock that prevents intruders from accessing your personal stuff.