From some user reports, this outage also affected installed desktop apps such as InDesign and Photoshop: "Several [Creative Cloud installations] in our office have been down for over 10 hours here," user @Rikki_B told MacUser via Twitter on Thursday morning. "Seems to be no way to access [apps], trying to open them results in the login screen, can’t see a way around it."
The exact cause of the outage has not been explained by Adobe but it was belatedly confirmed, and after the issue was resolved Adobe indicated that the failure happened "during database maintenance activity".
Adobe had launched the new suite of Creative Cloud-only apps and services last May, including Photoshop CC, InDesign CC, Illustrator CC, Dreamweaver CC, and other apps. The new online apps were replacements for Creative Suite 6, making them effectively Creative Suite 7.
As of February Adobe had an estimated 1.8 million paid Creative Cloud subscriptions. At an annual cost starting at $600 to $840, users get free updates, services like online backup and file-sharing, and the shared joy of knowing that a couple million people are sharing your pain.