Bitcoin_fake_transaction_vector76_attack_full_v... Today

: Once the exchange credits the account based on that one confirmation, the attacker withdraws the funds. Meanwhile, the rest of the network follows a different chain (where the original block was orphaned), and the transaction to the exchange is ultimately rejected as a double spend. Technical Context & Mitigation

: The merchant/exchange loses the goods or currency, while the attacker retains their original Bitcoin on the main chain. Bitcoin_Fake_Transaction_Vector76_attack_Full_V...

: Immediately after, the attacker broadcasts their pre-mined block to the network. : Once the exchange credits the account based