SFTP

noun3

1. •
   (Internet) Initialism of Secure File Transfer Protocol, a true SSH File Transfer Protocol client from the OpenSSH project.
2. •
   (Internet) Initialism of SSH File Transfer Protocol, a network protocol used for secure file transfer over secure shell.
3. •
   (Internet) Initialism of Simple File Transfer Protocol, an unsecured and rarely used file transfer protocol from the early days of the Internet.