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Groups > comp.sys.mac.system > #121613

Re: How to Securely Delete a Data File

From Lewis <g.kreme@gmail.com.dontsendmecopies>
Newsgroups comp.sys.mac.system
Subject Re: How to Securely Delete a Data File
Date 2019-02-02 11:23 +0000
Organization Miskatonic U
Message-ID <slrnq5avd7.4dn.g.kreme@Snow.local> (permalink)
References (6 earlier) <Y8mdneCiYI9y0MnBnZ2dnUU7-f2dnZ2d@giganews.com> <slrnq58s9q.2mod.g.kreme@jaka.local> <jZKdnZdueI8XNsnBnZ2dnUU7-WudnZ2d@giganews.com> <slrnq59d1c.b1l.g.kreme@jaka.local> <g7edncVgo6CtK8nBnZ2dnUU7-d3NnZ2d@giganews.com>

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In message <g7edncVgo6CtK8nBnZ2dnUU7-d3NnZ2d@giganews.com> Alan Browne <bitbucket@blackhole.com> wrote:
> On 2019-02-01 16:03, Lewis wrote:
>> In message <jZKdnZdueI8XNsnBnZ2dnUU7-WudnZ2d@giganews.com> Alan Browne <bitbucket@blackhole.com> wrote:
>>> On 2019-02-01 11:18, Lewis wrote:
>>>> In message <Y8mdneCiYI9y0MnBnZ2dnUU7-f2dnZ2d@giganews.com> Alan Browne <bitbucket@blackhole.com> wrote:
>>>>> On 2019-02-01 00:26, Lewis wrote:
>>>>>> In message <JuOdnQmbE_4S3s7BnZ2dnUU7-VOdnZ2d@giganews.com> Alan Browne <bitbucket@blackhole.com> wrote:
>>>>>>> On 2019-01-31 13:41, nospam wrote:
>>>>>>>> In article <CamdnfMFPfhEqc7BnZ2dnUU7-X-dnZ2d@giganews.com>, Alan Browne
>>>>>>>> <bitbucket@blackhole.com> wrote:
>>>>>>>>
>>>>>>>>>>> I inadvertently created a copy of confidential Pages document that
>>>>>>>>>>> resides on an encrypted sparsebundle on my spinning Macintosh HD (Mojave
>>>>>>>>>>> 10.14.3).
>>>>>>>>>>
>>>>>>>>>>> How can I securely delete the copy?
>>>>>>>>>>
>>>>>>>>>> If your disk has FileVault enabled, as it should, you simply delete the
>>>>>>>>>> file.
>>>>>>>>>
>>>>>>>>> Can still be recovered because there is a single key for the whole
>>>>>>>>> drive.  (Unlike iOS with keys for each file).
>>>>>>>>
>>>>>>>> an attacker won't know what that is.
>>>>>>
>>>>>>> Depends on the attacker and what access he has to the physical
>>>>>>> environment.  If the police have a search warrant and find the password
>>>>>>> (written down for example) or recovery key then they'll get in.
>>>>>>
>>>>>> OK, you're goalpost shifting now. You're done.
>>>>
>>>>> Not at all.  While my sys password is in my head, my system HD recovery
>>>>> key is written down and only superficially disguised.
>>>>
>>>> Then you're stupid.
>>>>
>>>>> A determined investigator/hacker has a good chance of connecting the
>>>>> dots.
>>>>
>>>> Writing down a password is simply stupid. Period. There is no rational
>>>> justification for it.
>> 
>>> Who said I wrote down a password?  It's a recovery key.  Not memorable
>>> stuff...
>> 
>> A recovery key is a password.

> Not in the sense of daily use to login or access docs.  It's there to 
> _recover_ in case you've lost / forgotten the password.

It doesn't matter how often you use it, it's a password. I have
passwords I use less than yearly.

> So, again, nothing I'd remember (for long) and not "connected" to its 
> purpose.  Would take a pretty determined person to figure out what 
> machine it was for, and what purpose on the machine for which it is 
> intended.

The point is not that you are supposed to REMEMBER the password, the
point is that you MANAGE the password where you, and only you, have
access to it.

-- 
I wrote this song two hours before we met. I didn't know your name, or
what you looked like yet....

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Thread

How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-01-30 19:21 -0500
  Re: How to Securely Delete a Data File Ed Norton <norton@nowhere.com> - 2019-01-30 19:38 -0500
  Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-01-31 04:37 +0000
    Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-01-31 09:12 -0500
      Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-01-31 15:41 +0000
        Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-01-31 22:55 +0000
          Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 08:42 -0500
    Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-01-31 12:48 -0500
      Re: How to Securely Delete a Data File Ed Norton <norton@nowhere.com> - 2019-01-31 13:29 -0500
        Re: How to Securely Delete a Data File Elden <usenet@moondog.org> - 2019-01-31 14:24 -0600
        Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 05:24 +0000
      Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-01-31 13:41 -0500
        Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-01-31 13:50 -0500
          Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-01-31 14:30 -0500
          Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 05:26 +0000
            Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 08:47 -0500
              Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-01 10:57 -0500
              Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 16:18 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 15:26 -0500
                Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 21:03 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 16:12 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 21:57 +0000
                Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-02 11:23 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-02 10:24 -0500
                Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-03 05:12 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-03 19:14 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 21:56 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 18:34 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-01 19:49 -0500
              Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 17:05 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 15:29 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 22:02 +0000
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-01 18:37 -0500
  Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-01-31 09:14 -0500
  Re: How to Securely Delete a Data File Percival John Hackworth <pjh@nanoworks.com> - 2019-01-31 07:59 -0800
    Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-01-31 11:04 -0500
    Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 05:28 +0000
  Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-01-31 12:49 -0500
  Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 03:21 +0000
    Re: How to Securely Delete a Data File Ed Norton <norton@nowhere.com> - 2019-02-01 04:49 -0500
      Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-01 10:57 -0500
        Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 17:02 +0000
      Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 16:16 +0000
      Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 17:02 +0000
      Re: How to Securely Delete a Data File Barry Margolin <barmar@alum.mit.edu> - 2019-02-01 12:56 -0500
        Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-01 13:05 -0500
          Re: How to Securely Delete a Data File Barry Margolin <barmar@alum.mit.edu> - 2019-02-01 13:34 -0500
            Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-01 13:48 -0500
              Re: How to Securely Delete a Data File Barry Margolin <barmar@alum.mit.edu> - 2019-02-03 12:01 -0500
        Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 18:51 +0000
  Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-01 15:27 -0500
    Re: How to Securely Delete a Data File "David B." <"David B"@nomail.afraid.invalid> - 2019-02-01 20:52 +0000
      Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-02 08:09 -0500
    Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-01 21:05 +0000
      Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 22:01 +0000
      Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-02 08:14 -0500
        Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-02 16:40 +0000
          Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-02 18:36 -0500
            Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-03 01:23 +0000
              Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-03 08:54 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-03 19:23 +0000
                Re: How to Securely Delete a Data File Ed Norton <norton@nowhere.com> - 2019-02-03 14:49 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-03 22:23 +0000
                Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-03 17:16 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-03 22:51 +0000
                Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-04 08:38 -0500
                Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-04 12:12 -0500
                Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-04 18:00 +0000
                Re: How to Securely Delete a Data File Wade Garrett <wade@cooler.net> - 2019-02-04 13:10 -0500
        Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-02 11:43 -0500
        Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-03 05:13 +0000
          Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-03 19:15 -0500
            Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-04 00:41 +0000
              Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-04 11:25 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-04 13:15 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-04 15:28 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-04 16:17 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-04 16:40 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-04 18:07 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-06 19:53 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-06 20:01 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-07 14:00 -0500
                Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-07 14:08 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-07 14:09 -0500
                Re: How to Securely Delete a Data File Alan Browne <bitbucket@blackhole.com> - 2019-02-07 14:10 -0500
                Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-08 02:41 +0000
                Re: How to Securely Delete a Data File Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-02-08 02:39 +0000
            Re: How to Securely Delete a Data File nospam <nospam@nospam.invalid> - 2019-02-03 19:44 -0500
    Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 22:00 +0000
      Re: How to Securely Delete a Data File Jolly Roger <jollyroger@pobox.com> - 2019-02-01 22:02 +0000
  Re: How to Securely Delete a Data File- RESOLVED Wade Garrett <wade@cooler.net> - 2019-02-07 10:31 -0500

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