Help with iMessage Security Breaking

Hello everyone!

So...a few days ago i was thinking about how without all these messaging application makes our life "easier" since we don't have to write letters, you can send multiple messages at once and well...you how messages work...

So i was wondering how does an application such as iMessage menages to send messages with an internet connetion?What protocol does it use?

Basically i'm asking if someone knows how does it work technically because i would really like to test its security.

THIS IS NOT A "HOW DO I HACK" TYPE OF QUESTION.

I just want to understand how it works and then test its security by myself.

Thanks,

ThE-F1XeR