Apple is making big App Store changes in Europe over new rules. Could it mean more iPhone hacking?.

Apple is opening small cracks in the iPhone's digital fortress as part of a regulatory clampdown in Europe. The overhaul rolling out Thursday only in the European Union represents the biggest changes to iPhone's App Store since Apple introduced the concept in 2008. Apple has lashed out at the new regulations for unnecessary security risks to iPhone users in Europe, exposing them to more malicious attacks from apps downloaded from outside its ecosystems.