Huh, I'd previously thought that transfer of risk was an integral component of factoring, but apparently not:

> If the factoring transfers the receivable "without recourse", the factor (purchaser of the receivable) must bear the loss if the account debtor does not pay the invoice amount.[1] If the factoring transfers the receivable "with recourse", the factor has the right to collect the unpaid invoice amount from the transferor (seller).