How the Internet Works

What i learned about the Internet in Khan Academy is that we need a lot of codes to process something we search for on it. Many steps are required to check if the codes and what we search for a secure. The computer does this by checking its cyber security. I think its amazing how a message from one computer goes to another by just many codes like "1" and "0". I have also learned that the Internet is a dangerous place but many people are trying their best to make it secure.