Stolen iPhone 4S without Find My iPhone
My iPhone 4S on iOS9 was stolen from me as I was boarding a bus the other day, however it does not have Find My iPhone installed so I can't delete my data. The device does have a passcode, however it is relatively easy to guess. Is there a possibility the thief could access my notes/photos? There are many screenshots containing unchangeable confidential information on the device, and I'd much appreciate it remaining that way.
iPhone 4S, iOS 9