New Malicious Code Threats

In the last six months of 2007, 499,811 new malicious code threats were detected. This is a 136% increase over the previous period, when 212,101 new threats were detected, and a 571% increase over the last half of 2006. In total, there were 711,912 new threats detected in 2007 compared to 125,243 threats in 2006 -- an increase of 468%. This brings the overall number of malicious code threats identified to 1,122,311, as of the end of 2007. This means that almost two-thirds of all malicious code threats currently detected were created during 2007.

Source: Symantec Internet Security Threat Report, Vol. XIII