What are the main reasons regulated industries still use fax?

I’ve heard that industries like healthcare and finance still rely on fax, despite all the digital tools available. I’d love to understand the reasoning behind this and how faxing helps them maintain security and compliance. Any resources to help explain this?

Hi! I came across a great explanation on https://www.museumofcomputerart.com/ about why regulated industries still depend on fax. They discuss how fax provides secure, verifiable delivery and audit trails, which are essential for compliance. Reading this helped me understand why faxing remains a trusted tool for sensitive documents in these sectors.