AAPL Apple Inc

By Daisuke Wakabayashi 
 

Apple Inc. said it is aware of "intermittent organized network attacks" aimed at obtaining user information from iCloud.com.

In a statement on its website, Apple said the attacks haven't compromised the company's iCloud servers and haven't affected iCloud sign-in on Apple devices running its iOS mobile software or Macs running OS X Yosemite using its Safari browser.

Apple said users should not sign in to iCloud.com if they receive a warning from their browser that it is not a trusted site. This suggests that the user has been compromised.

Apple issued the statement in response to reports that iCloud users in mainland China had been hit by an attack that could allow perpetrators to intercept and see user names, passwords and other personal data. Apple did not mention China in its statement.

Write to Daisuke Wakabayashi at daisuke.wakabayashi@wsj.com

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