online fax service

An online fax service lets you send and receive faxes over the internet without a physical fax modem or phone line. On Windows 10, the built-in Windows Fax and Scan app requires legacy hardware, while online fax services work entirely through a web portal or email, making them a practical alternative for users who send only a few faxes per year. However, the Windows Fax Service itself has been subject to security vulnerabilities, such as CVE-2024-38104, a critical remote code execution flaw disclosed in July 2024. This tag covers discussions comparing hardware modems versus online fax services, the convenience of cloud-based faxing, and important security updates affecting the Windows Fax Service.