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SUMMARY:Searching for Evil - Dr Richard Clayton\, Security Group\, Compute
 r Laboratory\, Univ. of Cambridge
DTSTART:20080306T190000Z
DTEND:20080306T203000Z
UID:TALK10804@talks.cam.ac.uk
CONTACT:Ian Stevens
DESCRIPTION:Parking: 	On Site \n\nALL WELCOME - FREE EVENT\n\nComputer sec
 urity has recently imported a lot of ideas from economics\, psychology and
  sociology\, leading to fresh insights and new tools. Dr Clayton will desc
 ribe one thread of research that draws together techniques from fields as 
 diverse as signals intelligence and sociology to search for artificial com
 munities.\n\nEvildoers online divide roughly into two categories - those w
 ho don't want their websites to be found\, such as phishermen\, and those 
 who do. The latter category runs from fake escrow sites through dodgy stor
 es postmodern Ponzi (pyramid) schemes. A few of them buy ads\, but many se
 t up fake communities in the hope of having victims driven to their sites 
 for free. How can these reputation thieves be detected?\n\nSome of Dr Clay
 ton’s work in security economics and social networking may give an insig
 ht into the practical effects of network topology. These tie up in various
  ways with traffic analysis\, long used by the signals intelligence agenci
 es which trawl the airwaves and networks looking for interesting targets. 
 The speaker describes a number of dubious business enterprises that he has
  unearthed. Recent advances in algorithms\, such as Newman's modularity ma
 trix\, have increased the robustness of covert community detection. Much s
 cope remains for wrongdoers to hide themselves better as they become topol
 ogically aware\; we can expect attack and defence to go through several ro
 unds of co-evolution. We will therefore end up by talking about some strat
 egic issues\, such as the extent to which search engines and other service
  providers could\, or should\, share information in the interests of wicke
 dness detection.\n
LOCATION:Lecture Theatre 1\, Cambridge University Computer Laboratory\, J 
 J Thompson Avenue\, Madingley Road\, Cambridge
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