Not all services are up according to Apple's own system services status page, but we are able to log in.
We appreciate your patience as we work to bring our developer services back online. Certificates, Identifiers & Profiles, software downloads, and other developer services are now available. If you would like to know the availability of a particular system, visit our status page.
If your program membership expired or is set to expire during this downtime, it will be extended and your app will remain on the App Store. If you have any other concerns about your account, please contact us.
Thank you for bearing with us while we bring these important systems back online. We will continue to update you on our progress.
The dev center was taken offline after being breached by a developer who claims he reported all exploits to Apple.