What is SSH - Iphone Jailbreak?

I have been looking into jailbreaking my iPhone and from reading many articles about how secure jailbreaking is, it says its secure unless you don't change your password when using SSH. What is SSH? Do i need it to have the full effect of a jailbroken iPhone?

If you never downloaded ssh on your phone you are fine if you did and didn't change the default password then it's possible for someone to "hack" into your phone and see all your files if you ever used ifile on your phone that's how it they see it

Here us a good article about it http://jaxov.com/2009/11/secure-your-jailbroked-iphone-from-ssh-hacking-with-mobileterminal-app/

Really, you don't have to worry about SSH if you haven't downloaded it and if you don't know what it is, you haven't downloaded it. It basically gives you remote access to your device through another device. Again, if you didn't download SSH, then don't worry about it.

If you want to jailbreak the right way, here's a step by step tutorial on how to do it:

Here are some cool things you can download once you're jailbroken:

Hope this helps you out!