Re: Mysterious User Has Full Rights to Data Files
From: Adam Wood (adam_at_adamwood.com)
Date: 06/15/03
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Date: Sun, 15 Jun 2003 14:12:46 +0100
> On a Win2000 Pro machine with two drives (C and D), both
> NTFS, I noticed that on all files and folders on the D
> drive, under the security tab in file properties, there is
> a user whose name is "S-1-5-21-1844237615-839522115-
> 1144855363-1003" and the icon next to it has a "?". The
> user has full access.
>
> What exactly is this?
Windows stores user permissions not as names but as SIDs (security IDs) so
that, for example, you can rename a user and it keep all existing
permissions.
What you quote is a SID. When the security tab show a SID, it means that it
can't resolve the user. The user may have been deleted and the entry not
cleaned up, or the user may be hosted by a trusted system and the name
cannot be resolved at present.
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