Solution 2: Cancel Transaction
Once a Secure Transaction is made, users can always change their minds and cancel the transfer with Cancel Transaction Key before it’s confirmed on the blockchain (around 24 hours). Of course, this option would also be very useful in the case the wallet has been breached and funds were stolen.
Solution 3: Secure Fast Transaction
It allows users to send funds to their trusted contacts in a matter of minutes and with low fees, without the 24-hour delay. It requires a Fast Transaction Key and should be used wisely. That transfers will be sent over the next available block, which takes up to ten minutes.