can i tell if somebody has changed the attachment of my received email on my PC?

  • Thread starter Thread starter Sisi Roserio
  • Start date Start date
S

Sisi Roserio

Dear all,

I am wondering if there is a smarter way to tell whether a
specific file(e.g. Excel, Word or email) has
been "tempered" with. The only thing I know is to check
the File Properties to see when it was last modified, but
then I realize by changing the computer clock, one can
virtully set those date fields to be any time/date you
wish.

Is there another way to tell whether the file was indeed
the one saved/modifed on the date it says Or by the person
it says was the author?

A related question goes to how to tell whether the
attachment of email has been revised and resaved into the
mail?

Thank you so much in advance!
 
I can think of a lot of ways to temper with those files dates and versions.
The only way you can be sure that the file and message are original is by
Digitally Sign your documents and mail (certificates). Of course this must
be done by the Author/Sender.

--
Roady
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Dear Roady,

thanks for the reply, unfortunately those mails I am
concerned with are not signed before they were sent, now
is there anyway I could tell if they have been altered?
e.g. checking the dates is at all useful?

thanks,
Sisi
 
It is useful but not reliable. It can give you a good indication. e.g a mail
cannot be older than the attachment

--
Roady
www.sparnaaij.net
Microsoft Office and Microsoft Office related News
Also Outlook FAQ, How To's, Downloads and more...

Tip of the month:
-Tips for cleaning up your mailbox

Subscribe to the newsletter to receive news and tips & tricks in your
mailbox!
www.sparnaaij.net

(I changed my reply address; remove all CAPS and _underscores_ from the
address when mailing)
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