Yeah. Paypal was in that boat early on. They survived only because they were able to solve some very tough fraud problems. Otherwise it would have sunk them. I don't remember who was talking about it - maybe it was Thiel - but he said that at first it didn't seem like a big problem (in terms of how much it was costing the company), but someone at Paypal noticed that it was growing exponentially and if they didn't address it quickly they would not survive.