Apple's developer center originally went offline abruptly on July 18th. It was later revealed that the developer website had been hacked and that Apple could not rule out some developer information may have been leaked. Apple has been slowly restoring services since that time.We are pleased to let you know that all our developer program services are now online. Your patience during this time was sincerely appreciated.
We understand that the downtime was significant and apologize for any issues it may have caused in your app development. To help offset this disruption, we are extending the membership of all developer teams by one month. If you need any further assistance, please contact us.
Article Link: All Apple Developer Services Back Online after Hack, Apple Offers Free Month Extension