Researchers at the University of Erlangen in Germany cracked Apple’s default Wi-Fi hotspot password using an app written in Apple’s own Xcode programming environment. They found that the default passwords are made up of a combination of a short dictionary words followed by a series of random numbers. The app also gives explanations and hints on how to crack a captured WPA2 handshake using well-known password crackers. Future releases might also automate the process of capturing and cracking hotspot passwords.
Source: https://thehackernews.com/2013/06/cracking-iphone-hotspot-passwords-in-50.html