... global revenue of security service providers in 2006 was US$ 7.5 billion. On the user side, 61 percent of the respondents in the CSI survey reported security costs of 0-5 percent of the total ... presentation of material, including maps, do not imply the expression of any opinion whatsoever on the part of ITU concerning the legal status of any country, territory, city or area, or concerning ... the malware economy. Given the dynamic nature of this realm, however, the degrees of specialization, and the differentiation of roles are in continuous flux. Figure 2. Division of labor in the...