On Wed, May 5, 2021 at 2:27 AM grarpamp <grarpamp@gmail.com> wrote:
"Keyloggers" implied you only had broken boxes. But now you say that you buy box.
There is no "serial USB to USB" cable. There is "USB" cable. There is "serial (TIA-232-F)" to "USB" convertors.
I mean this one: https://www.ftdichip.com/Support/Documents/DataSheets/Cables/DS_USBNMC.pdf Do you think, or better have a URL explaining if someone attaches such a cable to a compromised PC and a brand new notebook that a trojan is capable of reaching the notebook? These cables work with CoolTerm for example, where a user sees how many bytes will be transferred. If the answer is yes, what about audio cable data transfers, which are much slower (baud rate wise)? If again the answer is yes too, than encrypted fax communications in a copy shop are the better option, at least for Bob to acknowledge the data reception from Alice, so that she knows that Bob received the data. Regards Stefan