Sudden drop in Spam
Worldwide spam rates fell sharply today after two major ISPs cut off internet access to hosting company McColo Corp.
Various security sources estimated that spam rates fell by between 4background-color: #b7c3cf; -moz-border-radius: 10px; min-height: 20px; width: 575px; font-weight: normal; padding: 15px 15px 15px 15px; and 75 per cent shortly after the company's servers were disconnected.
Although the levels have picked up again, the drop is being seen as strong evidence that a significant slice of the world's spam was coming from McColo.
"McColo Corp had a number of criminal organisations they were turning a blind eye to," said Jason Steer, product manager at IronPort.
"It was responsible for spam but lots as other things as well, even down to the level of child pornography. This is an unprecedented change in stance from ISPs that I do not think we have seen before."
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