I don't really use iCloud keychain but I've always had it turned on. Today, I noticed that it was turned off so I turned it back on, went through the SMS verification process and it turned back on. So I thought. About 5 minutes after it was successfully turned on, I got a pop up saying "iCloud keychain was reset, this phone is no longer participating in iCloud keychain." I repeated the process 3 times and every time, I got that same pop up and iCloud Keychain was turned off. Does anyone else with a jailbroken device (I have a 5s on iOS 7.0.6) have it enabled and working?