Joe Smith: "Mr bank, please initiate EFT to account XYZ."
Bank: K.
Dwolla: Funds received to Mr. Bogus T. Fradulent's account.
Joe Smith aka Bogus T Fradulent: "Mr Dwolla, please send em to Trade Hill, account ABC "
Dwolla: K.
Trade Hill: "Funds received to Bogus T Fradulent's account."
Joe Smith aka Bogus T Fradulent: "BUY BUY BUY SEND SEND SEND"
Joe Smith: "Mr bank, I made an error. I sent to account XYZ, I meant PDQ."
Bank: K. EFT reversed, reason of Joe Smith's funds deposited to wrong account. Dwolla, never mind that deposit to account XYZ.
Which brings up the question -- What is Dwolla's business model? How can they do no chargebacks at only 25 cents per transaction? One fraudulent payment reversal in every 5,000 transactions would bankrupt them.