iCloud Restore Bug - unknown Apple IDs

After I've tried to restore from my iCloud backup on iOS 6 I always get prompted by my iPhone to enter passwords from different unfamiliar to me Apple IDs. I know for sure those are not mine and noone could have used my iPhone. Plus I only use my own AID to buy software and another one for iCloud and iMessage/Facetime.

I have to set my device as new instead of easilly restoring from backup cause it keeps prompting after each restart. Quite strange. Anybody else have same problem?