This comment sounds troubling. > Very interesting. > My bank told me that they used the transaction authorization code from the last transaction. According to

This comment sounds troubling. > Very interesting. > My bank told me that they used the transaction authorization code from the last transaction. According to this statement, they had to manually enter the previous transaction authorization number and then tag the transaction as a "force post". > "A force-post transaction allows the merchant to bypass the authorization process by manually entering a previously obtained authorization code. > The transaction is then routed through clearing and settlement and subsequently force-posted to the issuer." > The key word is MANUALLY. There's another user claiming to have heard from his bank that coinbase used force-post transaction.