SFTP, or Secure File Transfer Protocol, is a secure way to transfer files over the internet. It uses encryption to protect the data being sent, ensuring that only authorized users can access the files. This makes SFTP a popular choice for businesses and individuals who need to share sensitive information safely. Unlike traditional file transfer methods, SFTP operates over a secure connection, which helps prevent unauthorized access and data breaches. It is commonly used for uploading and downloading files to and from servers, making it an essential tool for web developers and IT professionals who manage online resources.