Help in Cybersecurity

Hi,

I run an online business and I doubt my website got hacked! I don’t know much about the cybersecurity measures. I came to read about the cyber security assessment. Whom can I approach for a service?

And I want to ensure the security of my site from now onwards! Does anyone know the companies offering the service? I came across some of the cybersecurity consultation companies in Montreal ( http://nci.ca/ ).

Have you heard about this company before? If you have any suggestions or experience, feel free to share it. Thank you!