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Replay Attack

What does Replay Attack mean in crypto terms?

A Replay Attack is a malicious network attack where a valid data transmission is fraudulently repeated or delayed. In the context of blockchain, this can occur when a transaction made on one blockchain is replayed on another blockchain, leading to unauthorized transactions and potential loss of funds. Protection measures such as using unique transaction identifiers and implementing replay protection in network protocols are essential to prevent such attacks and secure the integrity of transactions.

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