Bitcoin transactions usually occur within a few seconds and are confirmed within the next 10 minutes. As long as the transaction has not been confirmed, a transaction that is considered authentic can still be canceled. Dishonest users can try to cheat at this time. The confirmation process can be accelerated by increasing the miner fee when sending Bitcoin. The more confirmations a transaction gets, the smaller the risk of canceling the transaction. This confirmation process is carried out by severe miners who are spread all over the world.