According to the law, only electronic contracts with reliable electronic signature technology have the same legal effect as handwritten signature buttons.

A reliable electronic signature needs to meet the conditions that the electronic signature data is exclusive to the signer, controlled by the signer and has not been tampered with since its generation, and the law requires the preservation of the electronic contract and its original form. The electronic contract signed by oneself has low probative power, and it needs to prove the authenticity of the signature and that it has not been tampered with, so the proof is more complicated.