Apple rolled out two-step verification for Apple IDs about a year-and-a-half ago. Now its finally bringing the same added security measure (which sends a numeric code to your phone or other trusted Apple device that you need to enter after your password) to its iCloud website and apps. As observed by AppleInsider, users who already have two-step verification enabled on their Apple IDs may see their iCloud web apps — Contacts, Mail, Calendar, Notes, etc. — greyed out and locked until they enter in the code sent to their devices.