appleeventlogoApple’s iTunes Connect system for submitting apps and media to the iTunes Store is back up after Apple took it down this morning when developers began noticing an issue that logged them into the accounts of other users.

Twitter was ablaze with reports from developers accessing accounts that they didn’t have credentials for, including one from BlackBerry. While it doesn’t seem like the issue translated into much (if any) malicious activity, the outage was a significant problem for developers who need to update their apps, or otherwise change them. It also affected users of Apple’s new TestFlight beta system.

It’s not clear what the root cause of the problem is yet. A spokesperson for Apple did not respond to a request for comment on this report.

Update (10:00 a.m.): Apple’s Service Status page has been updated to indicate an iTunes Connect outage.

Update (12:30 p.m.): iTunes Connect is back up. It’s still unclear what caused the bug and subsequent outage.

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