In order to use SFTP vis-a-vis Handelsbanken (i.e. when we act as an SFTP server) you will need to download our SSH public host key. This key will make it possible for your software to ensure that you communicate with the correct server, and avoid so-called man-in-the-middle attacks.
The SSH host key must be installed in your SFTP software. Please refer to your documentation or supplier for details. The key you download from us is safe, i.e. it need not be kept a secret.