A security change in iOS 8.3 prevents some file manager and transfer utilities like iFunBox and iExplorer from accessing app directories on an iPhone, iPad or iPod touch, MacRumors notes. The apps allow users to manage, transfer and back up data between their iOS devices and a Mac or PC, but updated iOS 8.3 security features blocked the apps’ ability to control data in installed apps and games. Scrambling for a fix over the weekend, iFunBox…