The forums, tech support, pre-release docs, program enrollment/renewal, and member center are all still down.
The big thing that's returned are the dev centers and certificate issuance.
Certificates, Identifiers & Profiles Now Available
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.
Either someone tampered with the data or made the whole system crash? Or it crashed by itself and there is no security issue at all :)
My guess is they won't because their server stack was ( and probably still is) too embarassing to talk about.
Sure it would have been a bigger download, but it is one route that would have worked and gotten you on your feet sooner.
I'm grateful they took security so seriously.
Edit: Deleted my *.apple.com cookies, then it worked.