Apple announced it introduced three advanced security features focused on protecting against threats to user data in the cloud.
With iMessage Contact Key Verification, users can verify they are communicating only with whom they intend. With Security Keys for Apple ID, users have the choice to require a physical security key to sign in to their Apple ID account. And with Advanced Data Protection for iCloud, which uses end-to-end encryption to provide a high level of cloud data security, users have the choice to further protect important iCloud data, including iCloud Backup, Photos, Notes, and more.