Almost Half of the World’s Spam Comes from Just 20 ISPs

Just 20 ISPs are responsible for half of the world's entire haul of Internet scam and spam emails, says a study. The thesis, entitled "Internet Bad Neighborhoods" is the work of a pair of researchers, Moreira Moura and Giovane Cesare, from the University of Twente, who researched over 42,000 Internet Service Providers worldwide and found the following trends:

• Most spam comes from the U.S.
• Most phishing comes from Asia--of that, Indian network BSNL came top of the list.
• The most crime-ridden network is Nigeria's Spectranet.
• The majority of bad ISPs are to be found in India, Brazil, and Vietnam.