Is it possible for someone to break into my iPhone?

I left my iPhone in a Hong Kong taxi (I didn't ask for a receipt and don't know the taxi number or driver). My have it set so that it requires my 4-digit pass code every time, but is it possible for whoever has my phone to access my email and other information by hacking or jail breaking it? Should I be changing my passwords for everything?

Is 6gb of data enough for a iPhone 5s?

I'm going to purchase the new iPhone 5s on a 6gb data usage contract and I was wondering if this would be enough as I don't want to go over my price plan. I would only use it for social media and browsing the internet.

If i jailbreak my iPhone, can i still backup my phone with iTunes?

I saw some amazing hacks with cydia, and I'm thinking of jailbreaking my device to benifit from those. My only concern however, is backup and restore, in case i change my phone or update to a new one.

Can i still use iTunes and iCloud to backup / sync data after the jailbreak?

I had IPhone 4s, has a passcode that I know. The device is now IPhone is disabled?

Because my daughter used and tried to unlock until the phone is disabled, can I unlock without lossing all the files on it, I tried ITunes it refer me back to the IPhone to unlock by passcode. All the local Iphone service centers informed that the device needs software installation and I will lose all data on it, any help on this rergard, I don't have back up for the files.

My iPhone's touch screen isn't working. What can I do?

The touch screen isn't responding to my swipe to even unlock, let alone do anything else. I thought I might be able to power it off but that involves the "slide to power off".

Added (1). The phone is an iPhone S and this has never happened before.

Note 3 slow - mo can you trim it?

I know that you can record 720p 120 fps slow motion video on the Note3 but can you trim it like the iphone 5s where in you can choose a certain part to be in slo mo and the rest in normal… Can you do that on the note 3?

How to know if my iphone has been unlocked?

I asked Vodafone to unlock my iPhone 4s and they said it would take up to 7 working days.
when will I know It has been done, will I have to phone them or can I just check when I want?

Unlock iPhone 5S AT&T with an unlock code?

Recently I bought an iPhone 5s 64gb from AT&T from eBay.
The seller gave me the unlock code that he was given by the AT&T wireless department.
Now, my question is, how can I unlock this phone to use it with my T-Mobile SIM card?
Having the unlock code I still must give 160 bucks to an unlocker website to do it for me?
Should I contact the AT&T service or what?

I tunes not working on windows 7 32 bit?

I have an iphone 5c but i tunes version is not working. My friend had the same problem but after installing 64 bit windows 7 on his pc the problem was solved, so if i have to install windows 7 64 bit on my pc will all my data be erased?

I've forgotten my iPhone 4 passcode, what should I do?

I recently changed my iPhone 4 (iOS7) passcode and I've forgotten what I changed it to.
Is there a way to bypass the passcode screen or just get rid of the passcode altogether?
Also, if I were to restore the iPhone to factory settings then restore it from a backup of the iPhone, will it still keep the passcode?