The Wall Street Journal:

Apple said it plans additional steps to keep hackers out of user accounts, but denied that a lax attitude toward security had allowed intruders to post nude photos of celebrities on the Internet.

To make such leaks less likely, Mr. Cook said Apple will alert users via email and push notifications when someone tries to change an account password, restore iCloud data to a new device, or when a device logs into an account for the first time.

This is just one of many steps Apple will take to protect themselves and users.