Apple has enhanced security in iCloud by offering two factor security authentication, which provides a 4 digit pass key back to the users mobile phone
QUOTE: Apple has bolstered the security in its iCloud, App Store and iTunes service in a bid to prevent hacking. The services will now offer two-step verification in order to prevent unauthorized access. Once activated, the additional security measure sends a four-digit number to a user’s phone via a text message. This is in addition to entering the regular Apple ID password associated with the username.
The function is enabled when a user access an Apple service such as downloading content from the App Store, a forgotten password or getting Apple ID-related support. Apple said in a statement that it took customer privacy “very seriously”. “Two-step verification is an even more robust process to ensure our users’ data remain protected. “Turning on two-step verification reduces the possibility of someone accessing or making unauthorized changes to your account information at My Apple ID or making purchases using your account. After you sign in, you can manage your account or make purchases as usual.