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FTP vs SFTP: Understanding the Key Differences for Secure File Transfer
FTP vs SFTP: Understanding the Key Differences for Secure File Transfer
Rapyd Team avatar
Written by Rapyd Team
Updated over a week ago

When it comes to transferring files over a network, two commonly used protocols are FTP (File Transfer Protocol) and SFTP (Secure File Transfer Protocol). Though they sound similar and both serve the purpose of transferring files, they are quite different in terms of security, speed, and reliability. Your choice between FTP and SFTP will depend on your specific needs, especially when it comes to the level of security required. In this article, we'll delve deep into both protocols to help you make an informed decision.

The aim of this article is to provide a straightforward comparison between FTP and SFTP, with a focus on aspects such as security, speed, efficiency, and user authentication. This is particularly important for users of Rapyd's managed WordPress hosting, where secure and speedy file transfer plays a crucial role. By the end of this article, you should be well-equipped to choose between FTP and SFTP based on your specific requirements, ensuring the integrity and speed of your file transfers.

Introduction to FTP and SFTP

FTP, or File Transfer Protocol, is one of the oldest protocols used for transferring files over a network. It is simple, easy to use, and supported by a wide range of platforms. However, FTP lacks some crucial security features, such as encryption, which makes it vulnerable to various types of cyber-attacks.

On the other hand, SFTP, which stands for Secure File Transfer Protocol, is an extension of SSH (Secure Shell Protocol). It comes with built-in encryption and secure channels, offering an extra layer of security when compared to FTP. Though SFTP is generally considered more secure, it might not be as widely supported as FTP.

Security Measures: FTP vs SFTP

The primary difference between FTP and SFTP lies in their approach to security. FTP transmits both your credentials and data in plain text, making it susceptible to eavesdropping and unauthorized access. SFTP, however, uses encryption to ensure that the data and credentials are secure during transmission. This makes SFTP a better choice when security is a primary concern, as it helps in safeguarding sensitive information.

Speed and Efficiency

FTP is generally faster for transferring large files because it doesn’t spend resources on encryption. However, the lack of encryption can be a drawback when you need to ensure the security of the data being transferred. SFTP, while slightly slower due to its encryption processes, offers a more secure method for file transfer, especially when handling sensitive data.

User Authentication Methods

FTP uses basic username and password authentication, making it relatively easier to hack. SFTP, on the other hand, uses SSH keys in addition to username and password for enhanced security. This two-layer authentication makes SFTP more secure and less susceptible to unauthorized access.

Compatibility and Use Cases

FTP is commonly used for simple file transfers that don't require high levels of security. It is compatible with many types of software and systems. SFTP is usually chosen for more secure environments, like healthcare or financial institutions, where data integrity and security are of utmost importance.


Both FTP and SFTP have their advantages and disadvantages. If your primary concern is speed and you're working in a trusted network, FTP could be a viable option. However, if security is paramount, especially for a managed WordPress hosting environment like Rapyd’s, SFTP would be the better choice due to its encryption and robust authentication methods. Choose wisely based on your specific needs to ensure the best balance between speed and security.

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