Since everyone reports spam levels a little differently, we’d like to take this opportunity to explain how we measure global spam levels here at Commtouch. We monitor unfiltered data streams of Internet email traffic, not including internal corporate traffic. This open traffic is analyzed to find the ratio of spam to legitimate email messages. This is the reported global spam level in our quarterly reports. This percentage represents how much of email sent in the world is junk spam email. End users likely experience lower levels of spam in their inboxes, since they may have several layers of spam filtering at the ISP and local level.

2007 Highlights
�� Spam levels reached 96%
�� Blended threats combined email,
malware and malicious websites
�� New types of attachment spam
debuted
Q4 2007 Highlights
�� MP3 spam outbreak accounted for
7-10% of global spam at peak
�� Holiday-related spam and malware
outbreaks: Halloween, Thanksgiving,
Christmas, New Year’s
�� Storm P2P botnet remains an
imminent threat
�� 70% of spam features sexual
enhancers