With BOLT’s DAG, access points receive unordered transactions which are automatically put back in the order thanks to the parent/child system. This structure allows transactions to be confirmed faster because they won’t have to wait to be integrated into a block and to wait for the confirmation of this one. But there is a problem with the unordered reception: an attacker would just have to post two transactions with an upper amount than half its funds. As they actually don’t have an order the network won’t be able to know which transaction comes first and has to be confirmed, so this person will be able to cancel the first transaction. For example, John owns 120 BOLTS, JESSICA sells to John something for 100 BOLTS, John pays and after a few seconds, once she received her BOLTS, Jessica send the object. Once John receives the confirmation of the shipment, he just has to create a second transaction with the same parents as the first one to another address. The two transactions will be in conflict and Jessica will wait for her money forever.
Attention. There is a risk that unverified members are not actually members of the team
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