
Apple's two-factor authentication system is now enabled for iCloud.com, with the site asking for a verification code before allowing users with two-factor authentication enabled to access various iCloud.com apps.
Access to iCloud.com apps like Mail, Contacts, Calendar, Reminders, Pages, Numbers, and Keynote is restricted until the verification code is entered on the website, but Find My iPhone remains accessible.


Originally implemented back in March of 2013, two-factor verification is an opt-in system designed to increase Apple ID account security by requiring identity verification before allowing users to make account changes or purchase content on new devices. It replaces standard security questions with a security code delivered to a trusted device.
Apple first tested two-factor authentication for iCloud.com back in June, well ahead of the iCloud breach, but the feature was not implemented until today.
Article Link: iCloud.com Now Utilizing Two-Factor Authentication