File Transfer Protocol (FTP)

File Transfer Protocol (FTP) is a standard network protocol used for the transfer of computer files between a client and server on a computer network.

FTP is built on a client-server model architecture using separate control and data connections between the client and the server. In modern web development, standard FTP is considered insecure because it transmits data—including usernames and passwords—in “plain text.” While it is still used for basic web publishing and file sharing in legacy environments, it has largely been superseded by more secure variants in professional workflows.