Hello! As stated in the article https://www.itsecurityguru.org/2025/01/22/is-online-fax-secure-everything-you-need-to-know/ online fax platforms typically apply encrypted transmission and secure storage to protect sensitive data. The article explains that email often lacks these protections by default, increasing exposure risks. It also highlights access controls and logging as advantages of fax-based systems. Still, the article cautions that security is not absolute and depends on provider standards, internal controls, and the security of receiving endpoints.