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Groups > comp.sys.mac.system > #121686

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 2019-02-03 05:12 +0000
Organization Miskatonic U
Message-ID <slrnq5cu1c.kjf.g.kreme@Snow.local> (permalink)
References (8 earlier) <jZKdnZdueI8XNsnBnZ2dnUU7-WudnZ2d@giganews.com> <slrnq59d1c.b1l.g.kreme@jaka.local> <g7edncVgo6CtK8nBnZ2dnUU7-d3NnZ2d@giganews.com> <slrnq5avd7.4dn.g.kreme@Snow.local> <8oudnUaYC_e6K8jBnZ2dnUU7-WmdnZ2d@giganews.com>

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In message <8oudnUaYC_e6K8jBnZ2dnUU7-WmdnZ2d@giganews.com> Alan Browne <bitbucket@blackhole.com> wrote:
> On 2019-02-02 06:23, Lewis wrote:
>> 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.

> You're getting boring.  The level of security for the recovery key is 
> more than adequate for the computer I am talking about.

But you used your piss-poor security as a reason that deleting a file
off an encrypted drive was not sufficient to protect it; obviously you
do not believe that your method is actually secure.

-- 
The days of our innocence and grace flow by
The smiles we wear upon our face blow by

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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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