Many Apple users feared their private information had been hacked on Friday after a widespread login failure hit iTunes and iCloud.
When trying to login to iTunes, users were given the message: "The Apple ID you entered couldn't be found or your password was incorrect. Please try again."
The term "Apple ID" quickly began trending on Twitter as Apple users started to panic that their accounts had been compromised:
"Thought my Apple iTunes password had been hacked and changed," said one user on Twitter. "Turns out its a worldwide glitch. Panic over. Ish."
After about an hour of frustration, however, reports emerged that Apple was working to tackle the problem.
By around 10.15am GMT most users were reporting that their Apple IDs were working again. Huffington Post UK's own tests showed the system appeared to be online.
There are a few scattered reports that some people's Apple IDs seem to be working. Apple's iCloud system status shows no issues at the time of this writing. Trying to change your Apple ID password results in a "Fatal internal error" on Apple's support pages.
Apple was unavailable for comment.
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