Every iPhone in the world has the same username ( root ) and password ( alpine ) . This opens the door to exploits. Luckily there is a quick fix for this:
1. Install Terminal from Cydia
2. Load terminal and type:
- su root
by doing that you are logged in as root. Once you are logged in as root type this:
- passwd mobile
when you type “passwd” and “passwd mobile” and hit return it will prompt you to type your new password. You will have to type it twice.