Hacking of accounts and data is nothing new in this era of technological advancement, no matter how seriously different organizations are working to prevent it they still find a way to reach their destination.
In a similar method hackers are hacking and stealing data of iPhone customers through their data backup at cloud. This time iPhone customers are receiving messages that there iCloud account is expiring which can be renewed by simply following a link.
On clicking the link you will be asked to enter the details for your account which will be then hacked stealing all your confidential data.
To save their customers from this iPhone warned their customer from following external links and asked them to never enter their iPhone account details on any website except the official site.