I have long held the opinion that the next big security wave will be focused on information integrity. Both the problem space and the solution space are highly immature. They operate at many levels.
Take the problem space for example. Networks are leading to growing potential for extortion, Chinese whispers, spin, FUD, rumour, urban myths, disinformation, changes in context, as well as the traditional margins of error.
Even Sir Tim Berners-Lee is now raising some of these concerns. We need to raise our game substantially in combating these problems.