The role of host-based security

In the beginning, there was the Internet.
And it was good (especially for businesses).
It allowed processes to become web enabled.
It enabled efficiencies in both customer facing and supplier facing chains.

Then came the security attacks.
(Toto, I’ve got a feeling we’re not in Kansas any more).
And they were bad (especially for businesses).

So we firewalled.
And we patched.
And we implemented AV and NIDS.

Are we done then?
Not really.

According to a leading analyst firm, an estimated 70% of security breaches are committed from inside a networks perimeter. This in turn is responsible for more than 95% of intrusions that result in significant financial losses. As a reaction, nearly every industry is now subject to compliance regulations that can only be fully addressed by applying host based security methods.

Security Information and Event Management systems (SIEM) can be of immense value here.

An effective SIEM solution centralizes event log information from various hosts and applies correlation rules to highlight (and ideally thwart) intrusions. In the instance of the “insider” threat, exception reports and review of privileged user activity is a critical activity.

If your IT Security efforts are totally focused on the perimeter and the internal network, you are likely to be missing a large and increasingly critical “brick in the wall”.

-Posted by Ananth

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