I suspect that should be laser or ink jet. Many plain paper fax
machines use a carbon roll and scribe to make the positive on plain paper
and the roll itself is indeed very easy to read.
Nick Tippler
University of Cambridge
On Wed, 14 Aug 2002, Wright, Tim M wrote:
> This used to be a classic information security risk- but I hadn't realized
> that such machines are still churning away! The cheapest solution would be
> to scrap the fax machine (the rolls for which are getting inordinately
> expensive these days) and replace it with a plain-paper variety.
>
> Tim
>
> --
> Tim Wright MA CISA
> Director - Technology Audit
> Charles Schwab Europe
> Tel: +44 (0)1908 527793
> Mobile: +44 (0)7932 669074
> Fax: +44 (0)1908 527593
>
> -----Original Message-----
> From: Neil Chadwick [mailto:[log in to unmask]]
> Sent: 14 August 2002 15:30
> To: [log in to unmask]
> Subject: Readable information on fax rolls
>
> Many fax machines produce both a positive and negative of documents
> received. The positive is taken away (hopefully) by the intended recipient
> and the negative is kept in the machine as waste until the roll is changed.
> I am told that in many cases this copy is clearer to read than the positive.
> The problem is how to dispose of the waste roll on which information can
> still be read. It could be argued that a fax is not a good way of
> transmitting personal data, but an organisation has no control over what is
> sent to it. Due to the make up of these rolls they will not shred and I am
> told that they contain substances that classify them as "special waste" due
> to the environmental impact of incinerating them.
>
> I would be interested to hear if anyone has identified this problem and
> found a solution.
>
> Neil Chadwick
> Information Security MAnager
> Stoke-on-Trent City Council
>
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