<p>Fear mongering?</p>
<p>2017/12/03 1:00 "Xen" <<a href="mailto:list@xenhideout.nl">list@xenhideout.nl</a>>:<br>
><br>
> Ralf Mardorf schreef op 02-12-2017 16:23:<br>
><br>
>> On Sat, 02 Dec 2017 12:48:39 +0100, Xen wrote:<br>
>>><br>
>>> Ralf Mardorf schreef op 02-12-2017 9:31:<br>
>>>><br>
>>>> CAUTION: Note that shred relies on a very important assumption:<br>
>>>> that the file system overwrites data in place. This is the<br>
>>>> traditional way to do things, but many modern file system designs do<br>
>>>> not satisfy this assumption.<br>
>>><br>
>>><br>
>>> If I recall correctly the next piece says that this only applies to<br>
>>> Ext3/4 when journal mode is DATA, which is not the default ;-).<br>
>><br>
>><br>
>> While this is correct, it's still worth to mention it.<br>
>><br>
>>> Thank you for creating noise ;-).<br>
>><br>
>><br>
>> I wouldn't call such a notice noise. This notice - incompletely quoting<br>
>> the manpage - is indeed biased, but since I provided the pointer to the<br>
>> extraction of the manpage, the reader is free to read the complete<br>
>> manpage. Just mentioning that the history could be shred without giving<br>
>> a hint to pitfalls, is much more biased and furthermore it's dangerous.<br>
><br>
><br>
> If you hadn't made a biased statement, I would not have had an issue.<br>
><br>
> Because then you don't create the impression that this is a very serious problem, when it isn't.<br>
><br>
> Creating fear in people for no reason, why do you do that?</p>
<p>If you are doing things that your local version of the NSA has interest in (or your local organized crime guys), for the cost of a scanning electron microscope and a bit of time, all sorts of things are recoverable.</p>
<p>And hardware itself tends to have the ability to move sectors, segments, etc., for a variety of reasons without notification, so scanning electron microscopes often do not need to be resorted to. Just bypass the high-level controller hardware.</p>
<p>Unless your OS has a reliable shred call and your hardware has a reliable shred command, you really shouldn't depend too much on shredding. </p>
<p>--<br>
Joel Rees</p>
<p><a href="http://defining-computers.blogspot.jp/">http://defining-computers.blogspot.jp/</a><br>
</p>