What happens if you forget to change your iPhone ssh password and you’re using GPRS or 3G ? Of course you’ll be hacked.
It appears one enterprising Dutch hacker used port scanning to identify jailbroken iPhones on T-mobile Netherlands with SSH running. Enabling SSH is a common procedure for jailbroken iPhones, allowing a user to log in via Terminal and run standard UNIX commands. Unfortunately, iPhones all have a default root password that many forget to change after jailbreaking, leaving their phone as vulnerable as a Lamborghini parked on a public street with the windows down, the doors unlocked, and the keys in the ignition.
Read more here.