IDS mailing list archives

RE: Question on resources needed to manage IDSes


From: "Teicher, Mark (Mark)" <teicher () avaya com>
Date: Tue, 9 Dec 2003 08:33:25 -0700

Anton,

I disagree. If the event correlation engine is designed correctly.
Human analysts should be rarely introduced into the equation of # of
humans/ #of sensors.  It is a big "IF".  Most MSPs didn't understand
that designing event correlation engines takes time and money.  If the
MSP would have focused more on event correlation then building nice
SOC's to impress their potential customer base, this discussion would be
irrelevant.  Very few MSP have perfected their event correlation engine
in a scaleable sense.  Those who were almost there have been gobbled by
much larger companies who just bought into the market or just wanted to
eliminate the "barbarians at the gate"

Compared to the number of MSP's in the market place over 5 years ago,
compared to the number of MSP's left, it is fair to say, either a) Were
acquired b) Massive layoffs/management re-organization c) Influenced a
couple of analyst panels stating the have better technology, market
share and beating their competition d) Have some guy with a pony tail as
their CTO writing books and being quoted when a major security related
news article is posted to the Internet and get a couple of trial
customer e) Out of money

Some of the options may apply to the current market..

/mark

-----Original Message-----
From: Anton A. Chuvakin [mailto:anton () chuvakin org] 
Sent: Friday, December 05, 2003 1:07 PM
To: focus-ids () securityfocus com
Subject: Re: Question on resources needed to manage IDSes


1-5 IDS sensors - 1 Analyst
5-15 IDS sensors -2 Analysts

being.  It would be generous to assume a human could qualify a 
reasonably complex alert in 30 seconds.  After that, it's simply a
The above also implies a certain usage scenario. One "complex alert in
30 seconds" implies that the analyst just sits there and stares at the
console where alerts pop up - which might be neither the most common nor
the most effective way. The tools available to analysts would also
matter, namely, how much time it will take to collect the context info
and to make a decision.

I suspect the specific IDS usage details will heavilly affect the
"analyst to sensor" ratios.

-- 
  Anton A. Chuvakin, Ph.D., GCI*
     http://www.chuvakin.org
   http://www.info-secure.org


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