The massive release of surveillance technology documents by Wikileaks clear illustrates the extent to which law enforcement (and others) can monitor people’s online activities in great detail. Moreover, it becomes quite clear there exists a huge market in these technologies… .
Check for example this brochure on a product called ‘Intellego’.
“See What They See, In Real Time
Intellego reconstructs a target’s online sessions and accurately reproduces every detail. By visually displaying the actual Internet activities of a target – sites visited, chat conversations, email content, files, photos, videos – users can relevance to an investigation…”