Overstock customers to buy any item at a tiny fraction of the listed price. Potentially more punishing, the flaw win64 bitcoin price anyone paying with bitcoin reap many times the authorized bitcoin refund amount on any canceled Overstock orders. Coinbase to let customers pay for merchandise using bitcoin, making it among the first of the largest e-commerce vendors to accept the virtual currency.
As a result of the change, Coinbase customers with balances of bitcoin at the time of the fork were given an equal amount of bitcoin cash stored by Coinbase. An early adopter of bitcoin, Snyder said he was using some of his virtual currency to purchase an item at Overstock when he noticed something alarming. During the checkout process for those paying by bitcoin, Overstock. But Snyder discovered that Overstock’s site just as happily accepted bitcoin cash as payment, even though bitcoin cash is currently worth only about 15 percent of the value of bitcoin.
The solar lights I purchased from Overstock. After indicating I wished to pay for the lamps in bitcoin, the site produced a payment invoice instructing me to send exactly 0. 00475574 bitcoins to a specific address. The payment invoice I received from Overstock.
00475574 in bitcoin cash instead of bitcoin. The site responded that the payment was complete. Within a few seconds I received an email from Overstock congratulating me on my purchase and stating that the items would be shipped shortly. But that wasn’t the worst part. I didn’t really want the solar lights, but also I had no interest in ripping off Overstock. To my surprise, the system refunded my purchase in bitcoin, not bitcoin cash!
Consider the implications here: A dishonest customer could have used this bug to make ridiculous sums of bitcoin in a very short period of time. We were made aware of an issue affecting cryptocurrency transactions and refunds by an independent researcher. After working with the researcher to confirm the finding, that method of payment was disabled while we worked with our cryptocurrency integration partner, Coinbase, to ensure they resolved the issue. We have since confirmed that the issue described in the finding has been resolved, and the cryptocurrency payment option has been re-enabled. No other Coinbase customer had this problem.