Is There a Virus Hunting Google?

I was using the ad preview tool when I got this (see above). The error is presented with a CAPTCHA that allows you to continue normally. I have heard from my co-workers that its appearing in the regular searches as well. Anyone know anything yet?

UPDATE: Google Ad Words is not showing any data for today.

UPDATE (10:49 AM): Google account manager say that Google is looking into the error. It started this morning.

UPDATE (11:04 AM): Ad Words data is starting to trickle in.

UPDATE (11:41 AM): Showing impression and conversion but no clicks. Also looks like the data is catching up as traffic look like what it should have been six hours ago.

UPDATE (12:48 PM): Looks like everything is back to normal in Ad Words.

UPDATE (1:30 PM): The System Engineers were noticing the problem. They say the error is not occurring outside our IP block (but across our entire IP block). So, going back to thinking its us, I contacted Google again. And again I was told that we are not the only ones seeing this error.

UPDATE (May 7 12:00 PM): Looks like the error is gone. Still talking to Google. So far they have given no explanation. This error was entirely unrelated to the Ad Words issue, which is now resolved. Just bad timing.