Re: Scope for self-destructing email?

"Deen, Glenn (NBCUniversal)" <Glenn.Deen@nbcuni.com> Thu, 17 August 2017 03:47 UTC

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From: "Deen, Glenn (NBCUniversal)" <Glenn.Deen@nbcuni.com>
To: IETF Discussion Mailing List <ietf@ietf.org>
Subject: Re: Scope for self-destructing email?
Thread-Topic: Scope for self-destructing email?
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Date: Thu, 17 Aug 2017 03:47:35 +0000
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References: <20170816225637.4431.qmail@ary.lan> <7352544b-8626-fb30-b74f-48b62110b7cf@gmail.com> <39610B4F-8DE6-4E19-A6C8-5FAB882DD524@orthanc.ca>, <CAMm+LwgqnPx2VBaoaWuU_YW547oRhQDTo48t4BokcwKqRSO+bw@mail.gmail.com>
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The key issue is that no method currently in existence can defeat a camera taking a picture of the screen.  That will always let an authorized receiver make a permanent copy of the email and do what they want with it.  Yes, you may be throwing away repudiation and signature information, but they will have the contents of the mail.

-glenn