Which file transfer service provides secure transfer of data?

The file transfer service known for providing secure transfer of data is SFTP, which stands for Secure File Transfer Protocol. This protocol is an extension of the Secure Shell Protocol (SSH) and incorporates encryption to securely transmit data over the network. By utilizing public key cryptography, SFTP ensures that both the data being transported and the credentials used for the session are securely encrypted, protecting them from interception and unauthorized access.

In contrast, standard FTP (File Transfer Protocol) transmits data in plaintext, making it vulnerable to eavesdropping and other security threats. SNMP (Simple Network Management Protocol) primarily focuses on network device management rather than file transfer, and TFTP (Trivial File Transfer Protocol), while it is a simpler and more lightweight file transfer protocol, also lacks the security features inherent in SFTP. Therefore, SFTP stands out as the preferred choice for secure data transfer, combining both reliability and confidentiality in its operation.