Secure payments and communications are essential for businesses, especially those handling banking transactions. While fax is commonly used, sending sensitive information over email poses risks. Interfax addresses this with a secure fax service that can handle hundreds of faxes simultaneously over multiple lines and servers, and allows broadcasting faxes to thousands of recipients at once. The service requires no hardware, software, or additional phone lines, and gives users full control over customizing and scheduling faxes up to 30 days in advance. Interfax also ensures privacy and security through encryption and deletion of faxes from servers once received.