Secure File Transfer Protocol - encrypted version of FTP for secure file transfers. Like FTP but with all packages sent in locked boxes.
Companies use SFTP to securely transfer sensitive financial data between systems without risk of interception.
SFTP is a protocol (SSH-based), not a single cloud service. AWS offers a managed SFTP endpoint via AWS Transfer Family. Azure provides native SFTP access to Blob Storage. Google Cloud does not provide a first-party managed SFTP service; SFTP is typically implemented using a VM/container or a partner solution. OCI commonly uses partner images/marketplace solutions or self-managed compute to expose SFTP, often integrating with Object Storage.