The Internet Engineering Task Force (IETF) working group "Secsh" that was responsible for the development of the Secure Shell version 2 protocol (RFC 4251) also attempted to draft an extension of that standard for secure file transfer functionality.
Internet Engineering Task Force (IETF) grupa "Secsh" koja je bila odgovorna za razvoj Secure Shell verzija 2 protokola (RFC 4251) je pokusala da pokrene nadogradnju tog standarda za dodatak osobine zaštite prenosa podataka.