When users share files on P2P networks, using software such as eDonkey or Gnutella, they often just wind up sharing the entire C: drive. This makes it possible for the wouldbe spammer to get hold of
the user's Outlook.pst file, where their Outlook messages are stored. All they have to do is search for "Outlook.pst" on the P2P network, and once some files are obtained e-mail addresses can be
extracted.
Read the whole story at TechSpot, April 20, 2005 »
