The volume of spam email has increased significantly this year, being comparable to record levels observed in 2010. Researchers from Cisco Talos believe the increase has been driven mainly from increased activity of the Necurs botnet.
Over the past five years, spam volumes have been relatively low compared to 2010, when they reached an all-time high. However, it appears that this lull might have ended this year, as spam is on the rise once again. Citing data from the Composite Block List (CBL), Cisco Talos researchers note that 2016’s spam volumes are nearly as high as they were back in mid-2010.
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