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What is the failure of signature verification of ABC's online banking?
Hello, if the online banking system prompts "5005 12 signature error, signature verification failed", the certificate status is generally abnormal, including expired certificates and invalid certificates. If the certificate status is normal, you need to verify whether the KBao password is entered incorrectly.

(Answer time: March 25th, 202 1. In case of business changes, please refer to the actual situation. )