There has been no word from Apple regarding this matter and we're not sure what or where exactly those usernames and passwords will take you to. If you were hoping for iPhone 4S/5 and iPad 3 leaks and images, you could be disappointed as it looks like everything is still pretty quiet on that end. However, vigilance is the key to staying protected, so changing passwords from time to time is always encouraged. If you feel that you may have been compromised by the recent waves of attack from Anonymous and LulzSec in their joint operation AntiSec, Gizmodo has a handy personal data-checker you can use to see if your username or password has been compromised.
source: Ubergizmo