How to protect yourself from SSH-based iPhone worms

There has been a lot of news lately on iPhone worms targeting those with jailbroken phones. These exploits take advantage of people with jailbroken iPhones using OpenSSH (which is available via Cydia) who don’t change their password for access as both a “root” (most powerful) and “mobile” (more restricted) user. Apple has never been friendly towards jailbreakers, and it seems they don’t even want to be bothered with it.