Credit card signature means that the cardholder needs to sign the transaction document when purchasing goods or services as a way of identity verification and confirmation. Credit card signature is an important link in the process of credit card transaction, which is regarded as a formal legal agreement between the cardholder and the merchant and is considered to have legal effect.

Credit card signature is not only a way to identify the identity of the cardholder, but more importantly, it is to confirm that the cardholder voluntarily bears the corresponding debts and risks. In other words, signing at the same time means that the cardholder agrees to bear certain debts. Once the cardholder is found to be in breach of contract or fraud, the signature will also become evidence for bank prosecution or proof.

Some credit card issuers try to adopt new authentication methods, such as passwords, fingerprints or face scans. But there is no doubt that credit card signature is still one of the widely used authentication methods. Therefore, in order to avoid mobile phone fraud and false transactions caused by signature, it is recommended that cardholders carefully check the transaction details such as transaction amount and commodity information when signing.