Key takeaways
- SFTP is a variant of host-to-host connectivity that transfers files securely and is built directly into the SSH protocol.
- It is one of the most reliable ways to connect to a bank and is used by companies of all sizes.
- A connection works by authenticating client and server with SSH keys or credentials, then encrypting all transferred data.
- SFTP can be automated with scripts or software to schedule transfers, and data quality depends on the sending bank.
Introduction to SFTP
Secure File Transfer Protocol (SFTP) is a variant of host-to-host (H2H) connectivity. It is a secure method for transferring files over a network. It offers file transfer capabilities similar to traditional FTP (File Transfer Protocol), but unlike FTP, it is built directly into the SSH (Secure Shell) protocol, giving it security by design rather than as an add-on.
SFTP is one of the most reliable ways of connecting to a bank and is used by companies of all sizes to support critical financial operations. The quality of data received via SFTP depends on the sending bank, but most banks have years of experience in implementing and maintaining SFTP connections successfully.
For an in-depth analysis of SFTP and other connectivity methods, read our full guide to bank connectivity.
How SFTP works
The process to set up an SFTP connection is as follows:
- Establishing a connection: An SFTP client (a company's treasury or ERP system) creates a connection to an SFTP server (the bank’s server) over a secure channel.
- Authentication: The client and server authenticate each other using SSH keys or credentials.
- Encryption: All data transferred over the SFTP connection is encrypted using strong encryption algorithms, ensuring confidentiality and integrity.
- File transfer: Once authenticated, files can be uploaded, downloaded, renamed, deleted, or managed on the server at will with all commands executed securely.
- Automation: SFTP can be readily automated using scripts or software tools to schedule and manage file transfers. The data exchanged can be processed as soon as it is transmitted and made available to the end user.
Pros and cons of SFTP
As with other H2H connectivity methods, SFTP ensures that financial data—including payment instructions, account statements, balance reports, and transaction details—is shared securely between the company and its banks.
SFTP is known for its robustness, reliability, and security. Encryption is used to protect data during transfer and it is trusted as a way of exchanging large volumes of financial data with banks.
SFTP is relatively easy to set up but it does require a unique connection to each bank. Since most banks send files on a daily or intraday basis, SFTP does not provide real-time capabilities. Note that some banks may only offer H2H services like SFTP to their corporate enterprise clients.
How Atlar can help with SFTP connectivity
SFTP is one of many connectivity methods supported by Atlar. Unlike other treasury software providers, Atlar manages the entire implementation end-to-end, with no work needed from our customers. This helps Atlar customers get up and running with all their banks connected in 2–3 months on average, compared to up to 18 months for a Treasury Management System (TMS). To learn more about how we tackle connectivity, get in touch with our team.
