WP-PostViews hacked

Hello,

We display the views of the posts on our wordpress site with WP-Postviews. Since today the number of views for one post on our site automatically increases by the hundreds in a short time (after half an hour: more than 1,000 hits!!)
However the stats indicate that nobody visited our site during that time.
The postview plugin is clearly being hacked. We have disabled it for now. However we would like our views back, counting correctly. Is there anyone with the same experience? Or someone who knows how to stop this disgusting, criminal intrusion without having to disable the plugin for ever and having to lose the past counting? Any help is greatly appreciated! H. Pelissier