These days fax machines are mostly obsolete but in the good old days, they were cutting-edge technology. The dawn of email made it possible to save paper and instantly transfer information online. Most industries prefer to streamline data-sharing so it’s obvious why they moved on from fax machines.
But it may surprise some people to learn that some governments and intelligence industries still use fax machines. That’s because they’re concerned about sensitive information. It’s safer to send a fax than to risk sharing a document on the Internet. Faxes are more secure than emails so they’re preferable (via The Guardian).