--- description: Transaction malleability refers to the ability to alter the unique identifier of a Bitcoin transaction without changing its underlying details. This can lead to issues with transaction tracking and confirmation, impacting the reliability of decentralized networks. title: Transaction Malleability --- [Skip to content](#content) # Transaction Malleability Transaction malleability refers to the ability for unauthorized parties to alter certain details of a cryptocurrency transaction before it is confirmed on the blockchain. This can lead to multiple variations of the same transaction being broadcast, potentially causing confusion and delays in processing. An attacker could potentially manipulate the transaction ID or signature in order to create a new version of the transaction that appears valid but with different details. This can lead to issues such as double spending and transaction delays, impacting the overall security and efficiency of the network. One way to mitigate transaction malleability is through the use of more advanced cryptographic techniques and improved validation processes. 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