This is a quote from the book "On Zero Confirmation Transactions" by Chris Pacia
...nly enough to remain competitive with credit cards, which currently have fraud rates much higher than Bitcoin. As Shapshift.io CEO, Eric Voorhees put it:

We accep t thousands of zero-conf transactions. We don’t need it to be impossible to double-spend, we just need to mitigate the risk sufficiently to where it can still make business sense. An occasiona l double-spend against us is worth the cost for the improved user experience.


It’s a straw man to suggest we think zero confirmation transactions are “100% safe”. They a...
read full book block explorer