Hello! In the article
https://www.itsecurityguru.org/...ng-you-need-to-know/, it is explained that online fax services commonly use encryption for both transmission and storage. As described in the article, this approach reduces the likelihood of interception and accidental exposure. It also highlights features such as authentication controls and delivery logs, which improve accountability. However, the article also notes that organizations should review provider policies carefully, since endpoint security and data handling practices remain critical factors.