Bitcoin double spend tool

This is a double spending method that anyone can do. Shops and services that accept payment, if the transaction has 0 confirmations, may be subject to the socalled Race attack. For example, two transactions are created for the same funds, then they are sent to various stores, services in this case, only one of the stores will receive funds the one whose transaction is first in the block chain. Stores can take various precautions to reduce the risk of this type of attack, but it should always be borne in mind if you accept transactions with 0 confirmations. You can try use tool for bitcoin double spend