Description: SFTP, or Secure File Transfer Protocol, is a network protocol that allows for the secure transfer of files over a network connection. Unlike FTP (File Transfer Protocol), which transmits data in plain text, SFTP uses an encrypted channel to protect information during transmission. This means that both access credentials and transferred data are safeguarded against interception and malicious attacks. SFTP is based on the SSH (Secure Shell) protocol, providing an additional layer of security and authentication. Key features include the ability to resume interrupted transfers, manage file permissions, and perform directory operations such as listing, deleting, and creating files. Its relevance in the field of cybersecurity is undeniable, especially in environments where the protection of sensitive data is crucial, such as in the financial, healthcare, and public administration sectors. SFTP has become an essential tool for system administrators and developers who require a secure and efficient way to transfer files over potentially insecure networks.
History: SFTP was developed in 1997 as part of the SSH protocol, created by Tatu Ylönen. The need for a secure method for file transfer arose due to the vulnerabilities of FTP, which did not encrypt information. Over time, SFTP has evolved and become a standard for secure file transfer.
Uses: SFTP is primarily used in environments where data security is paramount. It is common in the transfer of sensitive files in sectors such as banking, healthcare, and public administration. It is also used in server management and the implementation of secure backups.
Examples: A practical example of SFTP is its use by financial companies to securely transfer audit reports to their clients. Another case is that of developers using SFTP to upload application files to web servers, ensuring that the information is not intercepted during the process.
