We have recently deployed the latest release of SFTPPlus version 3.34.1 which fixes the following defects:

• The files downloaded using the HTTP file transfer service now have explicit headers to disable caching. [security][http][https] [#4953]
• The HTTP service no longer returns user input as part of the error messages. [security][http][https][server-side] [#4954]

You can check the full release notes here.