A bug in Yahoo! Publisher Network has resulted in false compliance alerts in many accounts. Publishers have received an e-mail saying that they have violated terms and policies. However, the accounts show no details of the compliancy issue.
JenSense has a response from the YPN support team:
Normally, the Compliance Manager page in your Yahoo! Publisher Network account will only appear if there's been a violation of our Terms and Conditions. However, we are currently addressing a system-wide issue causing this page to appear in accounts that haven't violated our guidelines. We regret that we're unclear as to when this will be resolved but advise you to disregard the notice if there?s nothing indicated on your Compliance Manager page itself. We apologize for any inconvenience caused to you.
Please do not hesitate to contact us if we can be of any further assistance.
Yahoo! has already faced some downtime due to the problem.