Touch and Timestamps

I know that touch is used to change the timestamp of a file, but why is this often linked to security considerations? I mean, simply being able to change the timestamp of a file (whether or not you own it) can't give any kind of unwanted control over the file, can it?
vexilAsked:
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TalenceCommented:
Giving files another timestamp than the time they were just changed can be used in an attempt to cover up tracks. Some
paranoia admin/scripts may be fooled into thinking the file
has not been edited, etc. This is for the case you have already
obtained control. On the other hand, setting 'crazy' timestamps
on files that certain programs depend on _may_ cause some interesting side effects.

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vexilAuthor Commented:
Thanks, Talence.
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