Handwritten signatures are unique to each person (writing style, writing speed, etc.). However, once the signature is on paper, it is easily forged with tracing paper .
Handwritten signatures therefore pose a problem of repudiation. One can algeria whatsapp number data 5 million simply claim that someone has copied one's signature, and it would be difficult to prove otherwise.
That's why we need digital signatures.
Digital signature and electronic signature: What is the difference?
We have already mentioned that a digital signature is a type of electronic signature. It is important to clearly differentiate between the two, since not every electronic signature is automatically a digital signature.

An electronic signature is any kind of expression, not just a signature itself. It can be a PIN code, a password or even a simple image of your signature:
Example of a simple electronic signature
Here is a quick comparison between electronic signature and digital.