> Once that URL/password get out, whatever "secure" file I've uploaded is exposed forever. That is true even if you can delete the uploaded file. Once someone

> Once that URL/password get out, whatever "secure" file I've uploaded is exposed forever. That is true even if you can delete the uploaded file. Once someone else has seen it you no longer control distribution. That said, you are right to distrust file transfer services by default. They are in a position to mess with you in many ways.