I'm not sure. I'm just asking. You know, to be safe.
I'm not trying to be obtuse, but what exactly is different security wise between a non-JB iPhone and one that is jailbroken?
I mean, nothing happens when you jailbreak that opens your system wide up to anyone that wants to peruse the file system. Apple may use that as a scare tactic but the reality is that you are just as secure as you always have been.
It's when you do other things, such as installing SSH and not changing the password, installing sketchy apps from sketchy repos, or in the physical realm leaving your iPhone alone in a public place without supervision.
Your info is as secure as you make it. If there is certain stuff that you just don't want to trust Apple's security on – then don't put it on the phone. Want to make it hard to get access to your iPhone? There's iGotcha or iCaughtU and any number of tweaks/apps in Cydia that will give others guest access or lock down apps. Heck, even the Starbucks and Dropbox apps from the App store have code access if you enable it.
But honest JB apps and tweaks, just like Apple store apps and iOS (with the exception of Apple's Data Usage and advertising which you can turn off) are not data mining your iPhone and uploading to some server in the Ukraine somewhere.