Zoho SalesIQ security issues -

Zoho SalesIQ security issues -

Hi, I'm trying to find the best solution for a chat channel for our business. I've launched a free version of Zoho SalesIQ but our web developer is not happy with the security aspects of the service - the main complaint is that anyone can copy/paste the code snippet from our website and use it for his or her own purposes, as it's not linked to the domain. He tested the snippet from the independent environment
to prove this - added the same snippet to a different website unrelated to our platform, and still managed to connect to our app. He said the issue is that chat is not linked to the specific domain, so it's easily accessible to anyone. Can you please clarify this?