What is the primary benefit of using SFTP over FTP?

The primary benefit of using SFTP (SSH File Transfer Protocol) over FTP (File Transfer Protocol) is enhanced security through encryption. SFTP encrypts both the commands and the data being transferred, which protects the information from being intercepted by unauthorized individuals during transmission. This level of security is crucial for protecting sensitive data, especially when it is transmitted over networks that may be exposed to potential security threats.

SFTP operates over a secure shell (SSH) which provides robust authentication methods, enhancing the safety of the file transfer. This protection is key when transferring confidential files, as it ensures that attackers cannot easily gain access to the contents of the files being transferred, thereby maintaining the integrity and confidentiality of the data.

While speed of transfer, improved interface, and lower costs can be considerations in file transfer methods, they do not match the critical importance of security that SFTP provides. In a world where data breaches are increasingly common, the ability to encrypt data and ensure its safety during transfer is the standout advantage of SFTP.