Some users’ PCs have been infected with a variant of the Koobface malware. This malware sends bogus tweets when the user logs into Twitter.
We are currently suspending all accounts that we detect sending such bogus tweets. If we suspend your account, we will send you an email notifying you of the suspension. This email also includes tips for removing the malware from your PC.
Earlier today, we accidentally suspended a number of accounts.
We regret the human error that led to these mistaken suspensions and we are working to restore the affected accounts—we expect this to be completed in the next several hours.
One additional note: some the accounts suspended were using the third-party site Tweetlater. However, Tweetlater is not to blame for these suspensions nor is it in violation of our Terms.
Due to a bug, you cannot view the pages that show another person’s followers or followings. We’ll have this fixed up as soon as we can.
Update (10:47a): This has been fixed.