Re: Inventory Benchmark

["Corn, Michael" <mcorn () UCSD EDU>]

I've always found it helpful to leverage network data to estimate the actual number of machines on your network. The 
error bars may be a tad large, but it gives you something to gut check the kinds of actual counts you get from endpoint 
systems. Ultimately you can measure progress as the reduction between endpoint counts and your network based estimate. 
Again, with a grain of salt, but something I've always found helpful.
MC

----------------------
Michael Corn | Chief Information Security Officer
mcorn () ucsd edu
University of California San Diego | ITS - Information Technology Services
10280 N. Torrey Pines Road, Suite 255 | La Jolla CA 92093 MC 0928

________________________________________
From: The EDUCAUSE Security Constituent Group Listserv <SECURITY () LISTSERV EDUCAUSE EDU> on behalf of Barton, Robert 
W. <bartonrt () LEWISU EDU>
Sent: Tuesday, July 25, 2017 7:29:10 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Inventory Benchmark

Morning,

In trying to evaluate our inventory process; I’m trying to figure out a good benchmark for our inventory percent 
managed/known.  I would like to say, that at any given time, we only have X% of unknown hardware.  So, if you asked on 
Tuesday, I could say we only have 115 machines unaccounted for in Symantec because they are off site, down, or 
otherwise non-communicating (115 = 5%).  That unknown number would need to included inventory issues/errors, 
non-reporting machines (off site, or down), and machines not controlled yet.  10% to high?  5% to strict?

Robert W. Barton
Director of Information Security
Lewis University
One University Parkway
Romeoville, IL  60446-2200
815-836-5663


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