It appears many Mail users are having authentication problems in which they are prompted for the username and password every time a message is sent (either manually ...

Users are experiencing problems with authentication for iTunes content. These issues affect playback/usage of audio files and iPhone applications. The applications will work if the user goes to the ...

Following two weeks of extreme chaos at Twitter, users are joining and fleeing the site in droves. More quietly, many are likely scrutinizing their accounts, checking their security settings, and ...