Confirmation of bitcoin transactions

When a person makes a bitcoin transaction, it first goes to the mempool and after +/- 10 minutes is included in a new block and that block is added to the blockchain. When the block is added to the blockchain, we have the first confirmation of the transaction. The block following our transaction gives us the second confirmation and so on. With the increase in confirmations, the risk of the transaction being reversed decreases. It is normal for exchanges and wallets to only process transactions with several confirmations, normally up to 6. Good practice is that the higher the value of the transaction, the more confirmations are necessary.

Now you must be asking, so if it's already in a block, why do we have to wait for more confirmations? In the event that the network is under a serious attack, it is possible for the blockchain to fork and in this case the transaction in question may become invalid because the majority of the network followed the branch where our transaction is not.

Verify your transaction here

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