You make it sound like it's totally insecure. Look at all the alternatives, and I am pretty sure we are the more secure.

Most still use a fax, which is incredibly insecure (how can you be sure who signed?). Other online solutions either use simple email reply or a hand-written signature.

Just to clarify the process, once you uploaded your file and chose the signatories, Signsquid sends a link to each signatory. Each one of them has its own unique link. Then, the sender (you), gain access to the list of codes assigned to each signatory. Again, each one of them as one unique code. You have to call them by phone to tell them the code.

If someone wanted to "hack" the process, he would have to gain access to the inbox of the user and also fake his voice over the phone.