Recently started getting virus alert messages while on Yahoo! my AVAST anti-virus keeps alerting me of potential danger with abort connection the recommended is there a virus on YAHOO! or has all the improvements made it less compatible with avast.
If you are receiving a message due to an iframe attack the cause would most likely be the integration of custom developer applications into the left column of the new Yahoo! homepage. Since these containers are within multiple iframes it could cause that message with your anti-virus software. I don't know this for sure but it would be my best guess. I can assure you that Yahoo! implements strict security measures on all of its properties, and the custom application are run through strict code filters to ensure that no malicious code is run.
Jonathan LeBlanc Technology Evangelist Yahoo! Developer Network Twitter: jcleblanc