On April 24, 2013 Apple iCloud, iTunes, Apple ID, and Game Center were affected by power outages from around 4:20 a.m to 8:25 a.m Pacific Time.
The company states that “some users” may have experienced difficulty logging in to these programs. Although Google issued a detailed incident report about its outages affecting Gmail and Google Apps, Apple did not respond when prompted to provide more information.
The most recent iCloud outage, affecting 3% of total users, happened on February 28th of this year.
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Apple iCloud Has Service Issues, Again