6. No Chargeback
One of the most significant features of the Ethereum network is that there is no chargeback – there is no way to get them back or cancel a contract until the funds are submitted. So, make sure the address is never written by hand since it is simply a very long string of random letters and numbers that is case-sensitive. One single mistake can cause your funds to vanish forever. So, before confirming a transaction, make sure to double-check all the details.