Buy a second hand phone just for the trip. Don't log-in into anything (an Android), and install no apps. Just remember your password. Once you get to the hotel go ahead and install whatever you need for your trip (navigation etc.) You can check most things via the phone's browser, your email through Firefox/webmail, etc. You can install signal and text to your 'other account' at you PC at home any photos/zips/etc. If you are really afraid, you can reset the phone before you get to the airport to leave. Your photos will be waiting for you on the Singal at your home.