RE: How to prevent zero day attacks

["David Gillett" <gillettdavid () fhda edu>]

amishra.jsr () gmail com [mailto:amishra.jsr () gmail com] wrote:

> Traditionally all the anitvirus, IPS works using signature based
technique. This doesn't help in zero day attack. Therefore, what can be done
to prevent zero-day attacks?

  While this is the "traditional" approach, "all" may be an overstatement.
Several antivirus/antimalware solutions include a "heuristic" component
which can, if not *prevent* an attack, alert you that an application's
behavior is deviating from reasonable expectations.
  Of course, an attack detected this way needn't be a zero-day.  But since
the detection is not based on recognizing a known attack signature, it can
work as well on unknown attacks as on known ones.

David Gillett, CISSP CCNP


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