The plug got pulled on OAuth this week in several places, including Twitter and Yahoo!, with Twitter taking a lot of heat on the subject.

Yahoo! is now allowing users and developers to authorize applications, but with some additional messaging letting users know that their data may be at risk if they continue. The main idea here is obviously that developers can still continue their work while the protocol level problem is resolved.

Additional information

Yahoo!’s OAuth Update #2

OAuth acknowledgement of issue

Details on the issue from the advisory