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"One type of pushback we can receive is from facilities themselves. One facility returned one of our letters and said that you can't have anything in the letter
by FpUser 7y ago
"One type of pushback we can receive is from facilities themselves. One facility returned one of our letters and said that you can't have anything in the letter that could be some form of encrypted message or symbol. In our case, that happened to be the bar code used by the third party service to manage their letters."
Here is example of bad scenario which I sincerely hope will never happen. Anything containing image (letter itself included) can be considered as encrypted due to a tech like steganography. They can get really creative there.
- zrm 7y agoYou can do the same thing with text as well, or any message that contains any entropy whatsoever. There isn't one type of message where this is possible and another where it isn't. If you allow two parties to communicate at all, they could really be communicating about anything.
- syshum 7y agoThe steganography your talking about really only works in digital formats, not printed in this case "code messages" can be just as easily hidden in the text of the letter (in fact probably easier) then in the printed out image
- FpUser 7y agoYou are wrong. There is a printable steganography along with the pure digital.