Virus Traffic in Email
Virus traffic in email is a good graph to help examine the changes in malware and how it is detected. The first thing you notice is the seasonality of the malware traffic.
The second noticeable fact is that only a small percentage of the malware traffic is caught using commercial Anti-Virus engines, The rest is caught using in-house threat intelligence and fingerprinting systems. Without this intelligence, our customers would be at a far higher risk of receiving malware through their email traffic.