One advertiser noticed he has received 1,201,660 clicks, costing him $965,212.38!
Yea, almost $1 million for just over 1 million clicks.
What happened? It appears that Yahoo upgraded the reporting features amongst other things, which caused some advertiser's reports to show huge spikes in numbers.
I would not panic, it appears to be a reporting issue only and there are no confirmed reports of actual charges of $1 million being placed on any advertiser's credit card. In fact, one advertiser reported that Yahoo is already fixing the issue.
I emailed my Rep & he said they know about it & they are working on resolving it already. The UI was upgraded & there are quite a few bugs that were produced because of it. We can't log into some accounts from certain countries at all now.
Here is a screen capture of someone's account at DigitalPoint Forums:
There are also reports of issues logging in to advertiser accounts and more. I suspect these bugs will be resolved by the end of today.
Update from Tamar (October 10): YahooPete has updated the thread to inform advertisers that it was indeed a bug that has been fixed.