Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data.

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От
Andrew Sullivan
Тема
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data.
Дата
Msg-id
20151118215124.GB30327@crankycanuck.ca
Ответ на
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. (Adrian Klaver)
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postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "Day, David" <dday@redcom.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. John R Pierce <pierce@hogranch.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "Day, David" <dday@redcom.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "Day, David" <dday@redcom.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "Day, David" <dday@redcom.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "Day, David" <dday@redcom.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. "David G. Johnston" <david.g.johnston@gmail.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Alvaro Herrera <alvherre@2ndquadrant.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Tom Lane <tgl@sss.pgh.pa.us>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Andrew Sullivan <ajs@crankycanuck.ca>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Andrew Sullivan <ajs@crankycanuck.ca>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. John McKown <john.archie.mckown@gmail.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Merlin Moncure <mmoncure@gmail.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Karsten Hilbert <Karsten.Hilbert@gmx.net>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Melvin Davidson <melvin6925@gmail.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Andrew Sullivan <ajs@crankycanuck.ca>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Michael Nolan <htfoot@gmail.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Adrian Klaver <adrian.klaver@aklaver.com>
Re: postgres zeroization of dead tuples ? i.e scrubbing dead tuples with sensitive data. Melvin Davidson <melvin6925@gmail.com> 
On Wed, Nov 18, 2015 at 01:38:47PM -0800, Adrian Klaver wrote:
> Alright, I was following you up to this. Seems to me deleted data would
> represent stale/old data and would be less valuable.

If the data that was deleted is sensitive, then the fact that you
deleted it but that it didn't actually go away means you can be lulled
into complacency about your vulnerability with respect to that data in
a way that you're unlikely to be in respect of data you still have
(only with new values).  Lots of people forget about deleted data once
it's deleted.

Keep in mind that sometimes people delete data from a system because
it's been archived somewhere else or something like that -- not all
databases have the totality of all the relevant data in them, but can
often represent just "current" data.

Best regards,

A

-- 
Andrew Sullivan
ajs@crankycanuck.ca
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