Do I need to sign the visa instruction letter by hand?

A letter of explanation is a letter explaining the reasons when the visa applicant cannot provide some information or meet the rigid requirements of the embassy.

Since the promulgation and implementation of the Electronic Signature Law in 2005, electronic signatures have been widely used in many fields.

Online banking, physical banking, e-government, electronic signing, telecommunications, banking business halls and other places. Especially with the development of Internet, online banking adopts identity authentication based on electronic signature, which has been widely used.

"Electronic Signature Law" clearly stipulates that an electronic signature refers to data contained in a data message in electronic form, accompanied by data used to identify the identity of the signer and show that the signer approves its content.

Data message refers to information generated, sent, received or stored by electronic, optical, magnetic or similar means.

According to this law, a reliable electronic signature has the same legal effect as a handwritten signature or seal. At that time, consumers can safely "pay", "trade" and "transfer money" online with handwritten signature, "electronic version" official seal, cipher code, password or fingerprint, voice and retina structure.