John S. Quarterman
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Comparing ASN rankings by spam volume from two different data sources, CBL and PSBL (with a side trip to the University of Texas Computer Science Department), indicates there is enough correlation to have confidence in the rankings.
Last week we published a proposal for new organizational layers in order to be more effective in fighting spam. In this article we describe planned experiments to determine the effects of outbound spam reputation on Internet organizations.
Following up from an earlier article on RIPE Labs, we now present 3 new Internet organizational layers to provide economic incentives to cooperate more on improving Internet security. What is needed is better coordination and motivation through reputational and financial incentives.
Around 90% of all email is spam, and the situation is not getting better. The IIAR project at the University of Texas is building econometric models for economic incentives for Internet email providers, so that they can better prevent and deal with spam and botnets.
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