VeriFone attempted a classic "fear, uncertainty, and doubt" (FUD) campaign against Square today with a site and a video (below) claiming a major exploit in the mobile payment method. The credit card processing firm claimed that all was needed to "skim" and steal credit card data was a fake app that could use Square data but didn't actually process a payment. Since the hardware didn't encrypt the data, it could be adapted in "minutes" to systematically grab data from unsuspecting buyers, company chief Doug Bergeron claimed.