Edited by author 04-06-2006 04:08 PM
Hello,
 
In response to your comment [As the cover blurb went on to explain, "70% of network attacks originate within the enterprise ..."]:
 
I wrote the book Extrusion Detection. Nowhere in the book do I say anything like what you posted. That figure (and the more often-quoted "80%" figure) are myths derived from an over 20-year-old FBI study. I debunk that figure in my first book, The Tao of Network Security Monitoring.
 
Thank you,
 
Richard Bejtlich
 
References:
 
http://www.taosecurity.com/books.html