Some sources quoted as stating that many of the users of the operating system iOS 10 beta suffer from the problem of preventing them from using their own Apple Apple ID account.
The problem of two parts, the first of which relates to application-specific passwords, where they are forced to reset passwords, regardless of the version of iOS that is being used. But it is not a serious problem; because it has a stable version will be able to get a new password in a few moments.
The second part of the most complex and is particularly those who do step verification feature, where owners complained that feature iForgot that the system does not work with them, forcing them out of their accounts.
In all cases, the trial version of iOS 10 by some of the controversy over the issue of security and encryption. Let's see what Apple will do to help the owners of those complaints