If it's a security concern then it's a very strange one. Apps are certainly sandboxed, but they've always been able to access their own files before. And th

If it's a security concern then it's a very strange one. Apps are certainly sandboxed, but they've always been able to access their own files before. And this offline cache has been working for a long time. It's a very strange thing if they suddenly claim this is a security problem now.