1 In a nutshell 3

2 Current technology trends 4

3 Key market drivers and inhibitors 8
3.1 Key market drivers 8
3.2 Key inhibitors 13

4 Vendor landscape 15

5 Vendor spshot (the top five vendors) 18

6 The market opportunity 24
6.1 The total market opportunity 24
6.2 Geographic breakdown 26
6.3 Vertical market breakdown 28
6.4 Size band breakdown 30

7 Enterprise IT security investment priorities 32

8 Appendix 35
8.1 Definitions 35
8.2 Vendor Assessment 36
8.3 Further reading 37
8.4 Contact the authors 37