What is SFTP?
Secure File Transfer Protocol (SFTP) is a safer version of the FTP protocol that uses a secure shell data stream.
More About SFTP
SFTP is a secure version of FTP. In practice, SFTP works just like FTP if you’re an end user. You can establish an SFTP connection using a set of credentials and utilize a client to access, modify, and delete files on your server.
The main difference in SFTP is that it works over Secure Shell (SSH) to provide encryption for the data you send and receive. With SSH, your server might require you to provide a key on top of your SFTP credentials to establish a connection with the server. That SSH key is an advanced type of authentication credential.