Network security

Network security

1. Firewall

   • A firewall opens and closes and lets any data in and out.

2. Encryption

   • Scrambles the data so it cant be read by only people who know how to unscramble its.

3. Passwords

   • Are used to let certain people into accounts.
     • This is done by having something you have to type to get into an account.
       • We need this as people could just get into your accountt and mess with your data.

4. Physical security

   • This is things such as fans and locks.
     • These stops the data storages from being destroyed physically from fires or getting stole.

5. User access levels

   • These let only certain accounts to do cetain thing such as in school the students are only allowed into their files but teachers are allowed into everyones files.
     • If we didn't have this people could destroy anyone's files and data
     • These stop people from accesing the files that they souldnt.

6. SQL

   • Data validation checking for SQL statements and dissalowed characters.
   • Pentesting
   • Escaping input strings.