On 4 May 2015, at 3:09 pm, Rohan McLeod <rhn@jeack.com.au> wrote:

Russell Coker wrote:

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On Sat, 2 May 2015, Jason White <jason@jasonjgw.net> wrote:

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Morrie Wyatt <morrie@morrie.id.au> wrote:

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(Not that I'm saying that snail mail is free from risk either, but a letter can be dropped in a post box anywhere, so the chance of being exposed is minimal, or at least can be minimised by taking the fairly simple precautions of using generic stationary, print the content using standard fonts on a common model of printer, and random choice of post box to send the letter on its way.) Some printers, unfortunately, embed subtle identifying information in their output. https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking- dots http://en.wikipedia.org/wiki/Printer_steganography

Russell, both these seem to refer exclusively to laser-printers; a quick google didn't seem to find similar issues with ink-jets; absence of evidence, is evidence of absence ? :-)

regards Rohan McLeod

Gents, if you are concerned about traceability, there are (certain) colour laser printers that print their ‘fingerprint’ which will point to that particular printer. NB: Not every laser printer will do this. Only some (as per reports). I am now aware of inkjets being affected by the same issue, nor I am aware of b&w laser printers that are ’traceable’. Ignorance is a bliss in this regard. One needs to be very careful… Cheers, DB

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