Do you want to remove all your recent searches?

All recent searches will be deleted

Watch fullscreen

BBC Horizon - lnside The Dark Web (en subs)

canal tofu
5 years ago|5.4K views
With many concerned about internet surveillance, Horizon meets the hackers and scientists whose technology is fighting back. See also

Update 25 september 2015
Top-secret program records website browsing habits of “every visible user on the Internet.”