Wrong. It is wrong to think that digital signature can protect data from being stolen during transmission, because the main technology of digital signature is asymmetric key encryption technology. However, digital signature can't guarantee that information will not be intercepted during transmission, so it is wrong. Digital signature (also known as public key digital signature) is a digital string that can only be generated by the sender of information, and others cannot forge it. This number string is also an effective proof of the authenticity of the information sent by the information sender.