If you’ve ever needed to upload files to a web server, you’ve likely encountered the term FTP. It’s a foundational part of web hosting, but as with all things in technology, it has evolved. While FTP once dominated, a far more secure alternative has become the standard: SFTP.
Understanding the difference between these two protocols is crucial for any website owner. Using the wrong one could put your entire project and its data at risk. This guide will explain what each protocol is and why SFTP is the only choice for secure file transfer today.
The Basics: What is FTP?
FTP stands for File Transfer Protocol. It is a standard network protocol used to transfer computer files from a host computer to a server over a TCP/IP network. It’s a very old protocol, dating back to the 1970s.
When you use an FTP client to connect to your server, you are simply sending files from your local computer to your hosting account. It works, and it’s fast, but it has a critical and outdated flaw: it is completely unsecured. All the information exchanged during the connection—including your username, password, and the data of the files themselves—is transferred in plain text.
Think of it like sending a postcard. The information is not hidden or encrypted in any way. Anyone with access to the network can “read” your credentials and your files as they are being transferred. This is a significant security vulnerability in today’s digital landscape.
The Secure Solution: What is SFTP
SFTP stands for Secure File Transfer Protocol. Unlike FTP, which is a standalone protocol, SFTP is a feature of the SSH (Secure Shell) protocol. This distinction is the most important part of this discussion.
By leveraging an SSH connection, SFTP transfers all data over an encrypted channel. This is the difference between sending a postcard and sending your files in a locked, armored briefcase. No one can see the contents inside. All the information, including your sensitive login details, is scrambled and unreadable to any third party who might try to intercept it.
The advantages of using SFTP are clear:
- Data Encryption: All data transferred is fully encrypted, protecting your files and credentials from being intercepted by hackers.
- Secure Authentication: Your username and password are not sent in plain text, eliminating the primary security risk of standard FTP.
- Firewall-Friendly: SFTP typically operates on a single port (port 22, the same as SSH), which simplifies firewall management.
For any modern website, from a small blog to a large e-commerce store, using SFTP for all file transfers is a non-negotiable security best practice.
FTP vs. SFTP: A Clear Distinction
The fundamental difference between these two protocols comes down to security. While FTP operates as a completely unencrypted protocol, sending information in plain text, SFTP leverages the robust security of SSH to ensure every byte of data is encrypted. This means your username, password, and files are protected from the moment they leave your computer until they safely arrive on the server.
Beyond security, SFTP also provides greater data integrity. The protocol includes built-in checks to ensure that files are not corrupted during transfer, a feature that is not part of the standard FTP protocol. For modern, reliable web management, the choice is simple and clear.
Secure Your Files, Secure Your Future
FTP is a legacy protocol; SFTP is the modern, secure standard. In a world of increasing cyber threats, secure file transfer is not optional. It is a fundamental part of protecting your online assets and your visitors’ trust.
At Hosting International, we understand that a robust web hosting environment starts with security. Choose a hosting provider that prioritizes your safety and empowers you with the best tools available.