Average level of spam in the second quarter of 2009 has risen by 53 percent, as compared to the first quarter of this year, according to latest report from Google's email security and archiving services group, Postini. The report foresees unpredictable pattern of drops and spikes for the rest of the year.
In a blog post yesterday, Google said: "After last November's McColo ISP takedown, when spam volumes dropped by 70%, spammers worked overtime to fill the void. They succeeded: Within four months, spam levels rose back to pre-McColo levels. This upward trend continued through June 4, when another large ISP spam source, 3FN, was reported to have been dismantled. Spam volume immediately dropped 30% — not as extreme as McColo, but still significant. Although this created a sudden dip in spam levels, it also created an open invitation for opportunistic spammers to once again seize a market opportunity. Over the coming months, we anticipate watching new players once again drive spam levels back up. Since June 4, spammers have already made up a significant amount of ground, climbing 14% from the initial drop."
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