Apple's Dev Center system status page as of 6 p.m. EST, Friday.
Apple on Friday brought the iOS, Mac and Safari Dev Centers back from a self-imposed downtime after the website was compromised by "an intruder" last Thursday. Also in the green are "Certificates, Identifiers and Profiles" and "Software Downloads."
While the main sections of the portal have returned, as seen above, the Member Center section of the site remains down.
After the security breach last week, Apple announced that it would be completely overhauling its systems, and created a status page to keep developers apprised of the progress. The company reportedly had engineers working around the clock to fix the vital service.