If you jailbreak you open your phone to third party code and attacks. This is a horrible idea IMO. Your phone is pretty much equivalent to a credit card - a malicious software can induce heavy charges on your bill or even hack your bank account with a man in the middle attack if you're foolish enough to use some mobile bank app.
Your phone is already vulnerable even if you aren't jailbroken to man in the middle attacks such as the ACEDeceiver malware. This is the same ridiculous argument about using Windows computers. You just have to be careful.
You don't randomly get attacked it only arises if you don't change root password or add pirate repos. All other malware that is iOS related has targetted jailbroken and non-jailbroken phones alike. Often cases the patch for jailbroken phones is faster than what Apple puts out.No, your chances of being attacked rise exponentially if you jailbreak. It's really a bad idea. About as bad as using Windows to surf porn.
You don't randomly get attacked it only arises if you don't change root password or add pirate repos. All other malware that is iOS related has targetted jailbroken and non-jailbroken phones alike. Often cases the patch for jailbroken phones is faster than what Apple puts out.
Whats the point to jailbreak if you don't aim to pirate or install unsecure third party software? I wouldn't do it.
Ok. Also I still only see you spreading FUD about it just because it is 3rd party doesn't mean it is unsecure. Do you not install any 3rd party apps on Mac or Windows? I don't pirate. I tweak iOS to fit my needs. If Android had better app support and OS update support I would be interested, but until then jailbreak is the best way for me.